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14
Jun

Hardware status differs in VMware vCenter server and Veeam monitoring products (2020665)

Cause

Veeam monitoring products obtain the Hardware Status info of the monitored object using a MOB (Managed Object Browser) connection. At the same time, a vSphere Client connection to the vCenter Server or the ESX host uses a different method to obtain this type of data. Because of this discrepancy, you may see different information in the Hardware Status and Veeam Monitoring products.

Resolution

To check the VMware Rollup Health State on the affected host and vCenter:

  1. Use a web browser and access the Managed Object Browser (MOB) URL. For example:https://host_address/mobWhere host_address is the address of the affected host or vCenter Server.
  2. Browse to:content > rootFolder > childEntity > hostFolder > childEntity > host (select the appropriate host here) > runtime > healthSystemRuntime > systemHealthInfo > numericSensorInfo
  3. Locate the HostNumericSensorInfo related to VMware Rollup Health State.
  4. Make note of the summary string for each host.

To resolve this issue, use the Managed Object Browser (MOB) to invoke appropriate API calls:

  1. Using a web browser, access the MOB on the affected host using a URL similar to:https://affected_host_address/mob/?moid=healthStatusSystem
  2. Provide the host credentials.
  3. Under Methods, click the RefreshHealthStatusSystem link, then click Invoke Method in the pop-up window.
  4. If the sensor information is still incorrect:
    • Under Methods, click the ResetSystemHealthInfo link, then click Invoke Method in the pop-up window.

Additional Information

For related information, see Veeam article 1007.
Obtained from this link
14
Jun

Hardware status differs in VMware vCenter server and Veeam monitoring products

KB ID: 1007

Product: Veeam Management Pack for VMware (SCOM);Veeam Smart Plug-in (SPI) for VMware;Veeam Monitor;Veeam ONEVersion: AllPublished: 2011-07-14

Created: 2011-07-14

Last Modified: 2013-01-15

Problem:

One of the Veeam Monitoring Products (nWorks SPI, MP, Monitor, etc.) reports that a host hardware status has changed and that their sensor states “Sensor VMware Rollup Health State equal Unknown”, “Sensor VMware Rollup Health State equal Red”, or “Sensor VMware Rollup Health State equal Yellow”.

These alerts are good to know in case hosts in your environment have hardware issues, the issue will be notified in the alert, and the severity of the issue by VMware’s color scale (Yellow – Something is wrong but doesn’t involve data loss, Red – Data loss potential or production down, Unknown– Not knowing what the current status is of the sensor).

The problem becomes when you resolve the alert on the host, and the host reverts back to “Normal operating conditions” or “Green”, but Veeam Products are continuing to report the original problem.  Other issues can include the examples listed below as well.

You may experience the following problem with nworks products:

“Sensor VMware Rollup Health State equal Unknown” messages are displayed on a standalone host within a cluster, and there are no alerts on this matter.

In Veeam Monitor, you may notice that hardware status warnings are visible using vCenter, but there are no hardware related alarms visible in Veeam Monitor.

Cause:

Veeam monitoring products pull the Hardware Status info of the monitored object using a MOB-connection (MOB, Managed Object Browser). At the same time, the VMware vSphere client uses a different method to obtain this type of data. Because of this difference, you may see different information in the VMware vSphere client and Veeam monitoring products.

NOTE: Current and correct hardware status of monitored objects is always available via VMware MOB.  The hardware (host in this case) always takes precedence over the VC for the most accurate information.

Solution:

In order to narrow down the issue, we should compare the hardware status information for monitored objects using both VMware vCenter’s MOB and Host’s MOB.

How to check the hardware sensors using VMware MOB:

1. Open the VMware vCenter server’s MOB web link using your Internet browser (https://[your_vCenter_server_address]/mob) and follow this path:
content -> rootFolder -> childEntity -> hostFolder -> childEntity -> host [select appropriate host] -> runtime -> healthSystemRuntime -> systemHealthInfo -> numericSensorInfo

2. Find HostNumericSensorInfo related to VMware Rollup Health State. Make sure that the summary string is “Sensor is operating under normal conditions” and the label string is “Green”.
User-added image

As you can see from the screenshot, this host is having a problem according to the information provided in vCenter server’s MOB (VMware Rollup Health State is in Red). What we where expecting to see is the “Green” status with running as normal conditions.

3. Then open the VMware HOST’s MOB web link using your Internet browser (https://[your_VMware_host_address]/mob) and follow this path:
content -> rootFolder -> childEntity -> hostFolder -> childEntity -> host -> runtime -> healthSystemRuntime -> systemHealthInfo -> numericSensorInfo

4. Find HostNumericSensorInfo related to the VMware Rollup Health State. Make sure that the summary string is “Sensor is operating under normal conditions” and the label string is “Green”.
User-added image

As you can see from the screenshot, this host is NOT having a problem according to the information provided in host’s MOB (VMware Rollup Health State is in Green).

5. ​Please make sure that vCenter’s and Host’s MOBs show you the same status/summary for the VMware Rollup Health State.

If you see any difference between the VMware vSphere client and/or VMware MOB statuses (as in the example above), please open a support case with VMware’s support team.

Please note that for Memory and Storage, hardware sensors will pull the data from additional sections of MOB.

Here are the paths for Memory:

Open the VMware vCenter server’s MOB web link using your Internet browser (https://[your_vCenter_server_address]/mob) and follow this path:
content -> rootFolder -> childEntity -> hostFolder -> childEntity -> host [select appropriate host] -> runtime -> healthSystemRuntime -> hardwareStatusInfo -> memoryStatusInfoOpen the VMware HOST’s MOB web link using your Internet browser (https://[your_VMware_host_address]/mob) and follow this path:
content -> rootFolder -> childEntity -> hostFolder -> childEntity -> host -> runtime -> healthSystemRuntime -> hardwareStatusInfo -> memoryStatusInfo



Here are the paths for Storages:

Open the VMware vCenter server’s MOB web link using your Internet browser (https://[your_vCenter_server_address]/mob) and follow this path:
content -> rootFolder -> childEntity -> hostFolder -> childEntity -> host [select appropriate host] -> runtime -> healthSystemRuntime -> hardwareStatusInfo -> storageStatusInfoOpen the VMware HOST’s MOB web link using your Internet browser (https://[your_VMware_host_address]/mob) and follow this path:
content -> rootFolder -> childEntity -> hostFolder -> childEntity -> host -> runtime -> healthSystemRuntime -> hardwareStatusInfo -> storageStatusInfo



If you see differences between vCenter’s and HOST’s MOB, it’s strongly recommended that you open a support case with VMware Support team in order to get the issue resolved.

More Information:

NOTE: Also, Veeam has found that simply putting the host into maintenance mode and then exiting maintenance mode can address the problem. We still suggest that you open a support case with VMware Support team on this matter.

NOTE:  For additional troubleshooting, you can do the following steps (below) to resolve this issue, but this is to be used at your own risk.  If anything fails, or if this doesn’t resolve the issue, you will still need to contact VMware support.

On the VC, do the following to resolve this conflict at your own risk.
1. disable EVC on cluster.
2. vmotion machines over to secondary node.
3. maintenance mode / evict “faulted” node from cluster.
4. remove “faulted” node from vcenter.
5. log into “faulted” node via ILOM, restart management agents
6. re-add node back into vcenter.
7. re-add node to cluster.
8. re-enable EVC.

Please note that if you do not use some steps (EVC, Clustering, etc.) you can ignore these steps.  The main idea is to remove all VM’s from the host, remove the host from the cluster/VC, restart the host (or the management agents), then add the host back into the VC/cluster.  This process must be done one at a time per host to resolve the issue. 

For additional information regarding hardware monitoring, check out the “vSphere Client Hardware Health Monitoring” whitepaper from VMware (4.1).  http://www.vmware.com/files/pdf/techpaper/hwhm41_technote.pdf

Obtained from this link

8
Jun

iSCSI Advanced ACL on QNAP Turbo NAS

This document shows you how to configure iSCSI Advanced ACL (access control list) on QNAP Turbo NAS and verify the settings. All x86-based Turbo NAS models (TS-x39, TS-x59, TS-509, and TS-809) support this feature. Refer to the comparison table: http://www.qnap.com/images/products/comparison/Comparison_NAS.html

Introduction

In a clustered network environment, multiple iSCSI initiators can be allowed to access the same iSCSI LUN (Logical Unit Number) by cluster aware file system or SCSI fencing mechanism. The cluster aware mechanism provides file locking to avoid file system corruption.

If you do not use iSCSI service in a clustered environment and the iSCSI service is connected by more than two initiators, you will need to prevent multiple accesses to an iSCSI LUN at the same time. QNAP iSCSI Advanced ACL (Access Control List) offers you a safe way to set up your iSCSI environment. You can create LUN masking policy to configure the permission of the iSCSI initiators which attempt to access the LUN mapped to the iSCSI targets on the NAS.

LUN Masking is used to define the LUN access rights for a connected iSCSI initiator. If an initiator is not assigned to any LUN Masking policy, the default policy will be applied (See figure 1). You can set up the following LUN access rights for each connected initiators:

  • Read-only: The connected initiator can only read the data from the LUNs.
  • Read/Write: The connected initiator has Read and Write permission to the LUNs.
  • Deny Access: The LUN is invisible to the connected initiator.

Assumptions:

This how-to demonstrates how to configure advanced ACL on QNAP Turbo NAS. The test environment is set as Table 1. Host 1 and Host 2 connect to the same iSCSI target which has 3 LUNs. The file system format of the LUNs is NTFS. The default policy is deny access from all initiators. The LUN permission for the two initiators is listed in Table 2.

Note:If some iSCSI initiators have connected to the iSCSI targets when you are modifying the ACL settings, all modifications will take effect only after those connected initiators disconnect and reconnect to the iSCSI targets.

Figure 1: Flowchart of Advanced ACL

System Information
Host 1 OS: Windows 2008Initiator IQN: iqn.1991-05.com.microsoft:host1
Host 2 OS: Windows 2008Initiator IQN: iqn.1991-05.com.microsoft:host2
QNAP NAS iSCSI target IQN: iqn.2004-04.com.qnap:ts-439proii:iscsi.test.be23e6LUN 1 name: lun-1, size: 10GB

LUN 2 name: lun-2, size: 20GB

LUN 3 name: lun-3, size: 30GB

Table 1: Test Environment

Host 1 Host 2
LUN 1 Deny Read Only
LUN 2 Read Only Read/Write
LUN 3 Read/Write Deny

Table 2: LUN Masking Settings

iSCSI configuration on QNAP NAS

Default Policy Settings

Login the web administration interface of the NAS as an administrator. Go to “Disk Management” > “iSCSI” > “ADVANCED ACL”. Click to edit the default policy.

Figure 2: Default Policy

Select “Deny Access” to deny the access from all LUN. Click “APPLY”.

Figure 3: Default Policy Configuration

Configure LUN masking for Host 1:

  1. Click “Add a Policy”.
  2. Enter “host1-policy” in the “Policy Name”.
  3. Enter “iqn.1991-05.com.microsoft:host1” in the “Initiator IQN”.
  4. Set the LUN permission according to Table 2: LUN Masking Settings.
  5. Click “APPLY”.

Repeat the above steps to configure the LUN permission for Host 2.

Figure 4: Add a New Policy

Figure 5: Configure New Policy for Host 1

Figure 6: Configure New Policy for Host 2

Hint: How do I find the initiator IQN?

On Host 1 and Host 2, start Microsoft iSCSI initiator and click “General”. You can find the IQN of the initiator as shown below.

Verify the settings

To verify the configuration, we can connect to this iSCSI target on Host 1 and Host 2.

Verification on Host 1:

  1. Connect to the iSCSI service. (Refer Connect to iSCSI targets by Microsoft iSCSI initiator on Windows for the details).
  2. On the Start menu in Windows OS, right click “Computer” > “Manage”. On the “Server Manager” window, click “Disk Management”.

Host 1 has no access permission to LUN-1 (10 GB). Therefore, only two disks are listed. Disk 1 (20 GB) is read only and Disk 2 (30 GB) is writable.

Verification on the Host 2:

Repeat the same steps when verifying Host 2. Two disks are listed in “Server Manager”. Disk 1 (10 GB) is read only and Disk 2 (20 GB) is writable.

Obtained from this link

7
Jun

QNAP Turbo NAS as an iSCSI storage for Microsoft Hyper – V and as an ISOs repository

7
Jun

QNAP NAS from Windows 2008 using the MPIO feature

7
Jun

QNAP iSCSI initiator on Windows 2008 with MCS feature

How to connect an iSCSI initiator on Windows 2008 with MCS feature
6
Jun

QNAP TS-x79 series Turbo NAS with VMware ESXi 5.0

Introduction

This document provides basic guidelines to show you how to configure the QNAP TS-x79 series Turbo NAS as the iSCSI datastore for VMware ESXi 5.0. The TS-x79 series Turbo NAS offers class-leading system architecture matched with 10 GbE networking performance designed to meet the needs of demanding server virtualization. With the built-in iSCSI feature, the Turbo NAS is an ideal storage solution for the VMware virtualization environment.

Recommendations

The following recommendations (illustrated in Figure 1) are provided for you to utilize the QNAP Turbo NAS as an iSCSI datastore in a virtualized environment.

  • Create each iSCSI target with only one LUN

Each iSCSI target on the QNAP Turbo NAS is created with two service threads to deal with protocol PDU sending and receiving. If the target hosts multiple LUNs, the IO requests for these LUNs will be served by the same thread set, which results in data transfer bottleneck. Therefore, you are recommended to assign only one LUN to an iSCSI target.

  • Use “instant allocation” to create iSCSI LUN

Choose “instant allocation” when creating an iSCSI LUN for higher read/write performance in an I/O intensive environment. Note that the creation time of the iSCSI LUN will be slower than that of a LUN created with “thin provisioning”.

  • Store the operation system (OS) and the data of a VM on different LUNs

Have a VM datastore to store a VM with a dedicated vmnic (virtual network interface card) and map another LUN to the VM to store its data. Use another vmnic to connect to the data.

  • Use multiple targets with LUNs to create an extended datastore to store the VMs

When a LUN is connected to the ESXi hosts, iSCSI will be represented as a single iSCSI queue on the NAS. When the LUN is shared among multiple virtual machine disks, all I/O has to serialize through the iSCSI queue and only one virtual disk’s traffic can traverse the queue at any point in time. This leaves all other virtual disks’ traffic waiting in line. The LUN and its respective iSCSI queue may become congested and the performance of the VMs may decrease. Therefore, you can create multiple targets with LUNs as an extended datastore to allow more iSCSI queues to deal with VMs access. In this practice, we will use four LUNs as an extended datastore in VMware.

  • For normal datastore, limit the number of VMs per datastore to 10

If you just want to have one LUN as a datastore, you are recommended to implement no more than 10 virtual machines per datastore. The actual number of VMs allowed may vary depending on the environment.

Note:

Be careful the datastore shared by multiple ESX hosts VMFS is a clustered file system and uses SCSI reservations as part of its distributed locking algorithms. Administrative operations, such as creating or deleting a virtual disk, extending a VMFS volume, or creating or deleting snapshots, result in metadata updates to the file system using locks, and thus result in SCSI reservations. A reservation causes the LUN to be available exclusively to a single ESX host for a brief period of time, thus impacts the VM performance.

Deployment topology

The following items are required to deploy the Turbo NAS with VMware ESXi 5.0:

  • One ESXi 5.0 host
  • Three NIC ports on ESXi host
  • Two Ethernet switches
  • QNAP Turbo NAS TS-EC1279U-RP

Network configuration of ESXi host:

vmnic IP address/subnet mask Remark
vmnic 0 10.8.12.28/23 Console management (not necessary)
vmnic 1 10.8.12.85/23 A dedicated interface for VM datastore
vmnic 2 168.95.100.101/16 A dedicated interface for VM data LUN

Network configuration of TS-EC1279U-RP Turbo NAS :

Network Interface IP address/subnet mask Remark
Ethernet 1 10.8.12.125/23 A dedicated interface for VM datastore
Ethernet 2 168.95.100.100/16 A dedicated interface for VM data LUN
Ethernet 3 Not used in this demonstration
Ethernet 4 Not used in this demonstration

iSCSI configuration of TS-EC1279U-RP Turbo NAS:

iSCSI Target iSCSI LUN Remark
DataTarget DataLUN To store VM data
VMTarget1 VMLUN1 For the extended VM datastore
VMTarget2 VMLUN2 For the extended VM datastore
VMTarget3 VMLUN3 For the extended VM datastore
VMTarget4 VMLUN4 For the extended VM datastore

Switches

Switch Port Remark
A 0 To connect to Ethernet 1 of the Turbo NAS
A 1 To connect to vmnic 1 of the ESXi server
B 0 To connect to Ethernet 2 of the Turbo NAs
B 1 To connect vmnic 2 of the ESXi server

Note: The iSCSI adapters should be on a private network.

Implementation

Configure the network settings of the Turbo NAS

Login the web administration page of the Turbo NAS. Go to “System Administration” > “Network” > “TCP/IP”. Configure standalone network settings for Ethernet 1 and Ethernet 2.

  • Ethernet 1 IP: 10.8.12.125
  • Ethernet 2 IP: 168.95.100.100

Note: Enable “Balance-alb” bonding mode or 802.3ad aggregation mode (an 802.3ad compliant switch required) to allow inbound and outbound traffic link aggregation.

Create iSCSI targets with LUNs for the VM and its data on the NAS

Login the web administration page of the Turbo NAS. Go to “Disk Management” > “iSCSI” > “Target Management” and create five iSCSI targets, each with a instant allocation LUN (see Figure 6). VMLUNs (1-4) will be merged as an extended datastore to store your VM. DataLUN, 200 GB with instant allocation, will be used as the data storage for the VM.

For the details of creating iSCSI target and LUN on the Turbo NAS, please see the application note “Create and use the iSCSI target service on the QNAP NAS” on http://www.qnap.com/en/index.php?lang=en&sn=5319. Once the iSCSI targets and LUNs have been created on the Turbo NAS, use VMware vSphere Client to login the ESXi server.

Configure the network settings of the ESXi server

Run VMware vSphere Client and select the host. Under “Configuration” > “Hardware” > “Networking”, click “Add Networking” to add a vSwitch with a VMkernal Port (VMPath) for the VM datastore connection. The VM will use this iSCSI port to communicate with the NAS. The IP address of this iSCSI port is 10.8.12.85. Then, add another vSwitch with a VMkernal Port (DataPath) for the data connection of the VM. The IP address of this iSCSI port is 168.95.100.101.

Enable iSCSI software adapter in ESXi

Select the host. Under “Configuration” > “Hardware” > “Storage Adapters”, select “iSCSI Software Adapter”. Then click “Properties” in the “Details” panel.

Click “Configure” to enable the iSCSI software adapter.

Bind the iSCSI ports to the iSCSI adapter

Select the host. Under “Configuration” > “Hardware” > “Storage Adapters”, select “iSCSI Software Adapter”. Then click “Properties” in the “Details” panel. Go to the “Network Configuration” tab and then click “Add” to add the VMkernel ports: VMPath and VMdata.

Connect to the iSCSI targets

Select the host. Under “Configuration” > “Hardware” > “Storage Adapters”, select “iSCSI Software Adapter”. Then click “Properties” in the “Details” panel. Go to the “Dynamic Discovery” tab and then click “Add” to add one of your NAS IP address (10.8.12.125 or 168.95.100.100). Then click “Close” to rescan the software iSCSI bus adapter.

After rescanning the software iSCSI bus adapter, you can see the connected LUN in the “Details” panel.

Select the preferred path for each LUN

Right click each VMLUNs (1-4) and click “Manage Path…” to specify their paths.

Change Path Selection to “Fixed (VMware)”.

Then, select the dedicate path (10.8.12.125) and click “Preferred” to set the path for the VM connection.

Repeat the above steps to set up the preferred path (168.95.100.100) for DataLUN (200 GB).

Create and enable a datastore

Once the iSCSI targets have been connected, you can add your datastore on a LUN. Select the host. Under “Configuration” > “Hardware” > “Storage”, click “Add storage…” and select one of the VMLUNs (1 TB) to enable the new datastore (VMdatastore). After a few seconds, you will see the datastore in the ESXi server.

Merge other VMLUNs to the datastore

Select the host. Under “Configuration” > “Hardware” > “Storage”, right click VMdatastore and click “Properties”.

Click “Increase”.

Select the other three VMLUNs and merge them as a datastore.

After all the VMLUNs are merged, the size of the VMdatastore will become 4 TB.

Create your VM and store it in the VM datastore

Right click the host to create a new virtual machine, select VMdatastore as its destination storage. Click “Next” and follow the wizard to create a VM.

Attach the DataLUN to the VM

Right click the VM that you just created, click “Edit Settings…” to add a new disk. Then, click “Next”.

Select “Raw Device Mappings” (RDM) and click “Next”.

Select DataLUN (200 GB) and click “Next”. Follow the wizard to add a new hard disk.

After a few seconds, a new hard disk will be added on your VM.

Your VM is ready to use

All the VM settings have been finished. Now start the VM and install your applications or save the access data in the RDM disk. If you wish to create another VM, please save the second VM to VMdatastore and create a new LUN on the Turbo NAS for its data access.

Obtained from this link
6
Jun

QNAP RAID System Errors & How To Fix

I – Introduction;

II -How to Fix if RAID seems “In Degreed”

III -How to Fix if RAID seems “In Degreed Mode, Read Only, Failed Drive(s) x” Cases;

IV – How to Fix if RAID Becomes “Unmounted” or “Not Active”

V – “Recover” Doesnt Work, How to Fix if RAID Becomes “Unmounted” or “Not Active”

VI – Stuck at Booting / Starting Sevices, Please Wait / Cant Even Login Qnap Interface

VII – IF “config_util 1″ Command gives “Mirror of Root Failed” Eror;

VIII – How to Fix “Broken RAID” Scenario

IX – If None of These Guides Works;

..

I – Introduction;

Warning : This documents are recomended for Professional users only. If you dont know what you’r doing, you may damage your RAID which cause loosing data. Qnapsupport Taiwan works great to solve this kind of RAID corruptions easly, and My advice is directly contact with them at this kind of cases.

1 – If documetn says “Plug out HDD and Plug in” always use original RAID HDD at the same slot. Dont use new HDDs!

2 – If you can access your data after these process, backup them quickly.

3 – You can loose data on Hardware RAID devices and other NAS brands, but nearly you cant loose data on Qnap, but recovering your datas may cause time lost, so Always double backup recomended for future cases.

4 – If one of your HDD’s cause Qnap to restart itself when you plug in to NAS, Dont use that HDD to solve these kind of cases.

This document is not valid for Qnap Ts-109 / Ts-209 / Ts-409 & Sub Models.

..

II -How to Fix if RAID seems “In Degreed”

If your RAID system seems as down below, use this document. If not, Please dont try anything in this document:

In this case, RAID information seems “RAID 5 Drive 1 3″ so, your 2.th HDD is out of RAID. Just plug out broken HDD from 2.Th HDD slot, wait around 15 seconds, and Plug in new HDD with the same size.

..

III -How to Fix if RAID seems “In Degreed Mode, Read Only, Failed Drive(s) x” Cases;

If your system seems In Degraded, Failed Drive X, you probably loose more HDD than RAID tolerated, so;

1 – Take your Backup,

2 – Re-Install Qnap From Begining.

Qnap data protection features doesnt let you loose data even if your 5 HDD gives Bad sector errors in 6 HDD RAID Systems.

..

IV – How to Fix if RAID Becomes “Unmounted” or “Not Active”

If your RAID system seems as the picture down below, fallow this document. If not, Please dont try anything in this document:

1 – Update your Qnap fimware with Qnapfinder 3.7.2 or higher firmware. Just go to Disk Managment -> RAID managment. Choose your RAID and press “Recover” to fix.

If this doesnt work and “Recover” button is still avaible, just fullow these steps;

1 – While device is still working, Plug out HDD that you suspect which maybe broken, and press Recover button again.

Plug out Broken HDD, which lights Shines RED, or which HDD seems “Normal” / “Abnormal” / “Read-Write Error”

On HDD information Screen, than Press Recover. If doesnt work, Plug in HDD again, And Press Recover once Again

2 – If you plug out HDD —> then Plug it in the same slot again —> Press “Recover” Once Again and it should repair RAID;

3 – Here is log files;

4 – And RAID systems comes back with “Indegreed Mode”, so just quickly backup your datas, and Reinstall Qnap without broken HDD again.

We loose 2 HDD from RAID 5, so its impossable to fix this RAID again. Just Re-install.

..

V – “Recover” Doesnt Work, How to Fix if RAID Becomes “Unmounted” or “Not Active”

1 – Download Putty & login Qnap,

2 – Make sure the raid status is active

To understant, type :

#more /proc/mdstat

Also If you want to Stop Running Services;

# /etc/init.d/services.sh stop

Unmount the volume:

# umount /dev/md0

Stop the array:

# mdadm -S /dev/md0

Now Try This command

For RAID 5 with 4 HDD’s

mdadm -CfR –assume-clean /dev/md0 -l 5 -n 4 /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3

-l 5 : means RAID 5. If its RAID 6, try -l 6;

-n 4 means number of your HDDs, If you have 8 HDD, try –n 8

/dev/sda3 means your first HDD.

/dev/sdd3 means your 4.th HDD

Example;

If you have RAID 6 with 8 HDD, change command line with this;

mdadm -CfR –assume-clean /dev/md0 -l 6 -n 8 /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3 /dev/sde3 /dev/sdf3 /dev/sdg3 /dev/sdh3

If one of your HDD has Hardware Error, which cause Qnap restart itself, plug out that HDD, and type “missing” command for that HDD;

Example, if your 2.th HDD is broken, use this command;

# mdadm -CfR –assume-clean /dev/md0 -l 5 -n 4 /dev/sda3 missing /dev/sdc3 /dev/sdd3

3 – try manually mount

# mount /dev/md0 /share/MD0_DATA -t ext3

# mount /dev/md0 /share/MD0_DATA -t ext4

# mount /dev/md0 /share/MD0_DATA -o ro (read only)

4 – So, Result Should be Like That;

..

VI – Stuck at Booting / Starting Sevices, Please Wait / Cant Even Login Qnap Interface

Just Plug out broken HDD and restart Qnap again. This should restarts Qnap back again.

If you’r not sure which HDD is broken, Please follw this steps;

1 – Power Off the NAS.

2 – Plug out All HDDs,

3 – Start Qnap without HDDs,

4 – Qnapfinder Should find Qnap in a few minutes. Now, Plug in all HDD’s back again same slots.

5 – Download Putty from this link and login with admin / admin usernam / password;

http://www.chiark.greenend.org.uk/~sgta … nload.html

6 – Type this command lines which I marked blue;

# config_util 1 -> If result of this command give “Root Failed” dont go on and contact with Qnapsupport team

# storage_boot_init 1 ->

# df -> IF dev/md9 (HDA_ROOT) seems full, please contact with Qnapsupport.

(Now, you can Reboot your device with this command. ıf you want to reset your configration, please skip this.)

# reboot

..

VII – IF “config_util 1″ Command gives “Mirror of Root Failed” Eror;

1 – Power Off the NAS.

2 – Plug out All HDDs,

3 – Start Qnap without HDDs,

4 – Qnapfinder Should find Qnap in a few minutes. Now, Plug in all HDD’s back again same slots.

5 – Download Putty from this link and login with admin / admin usernam / password;

http://www.chiark.greenend.org.uk/~sgta … nload.html

6 – Type this command lines which I marked blue;

# storage_boot_init 2 -> (this time type storage_boot_init 2, not storage_boot_init 1)

This command should turn Qnap back to last “Indegreed” Mode and you should get this kind of information after this command:

7 – Download Winscp and Login Qnap. Go to ->share ->MD0_DATA folder, and backup your datas Quickly.

..

VIII – How to Fix “Broken RAID” Scenario

First, I try to fix “Recovery” method, but doesnt work. At Qnap RAID managment menu, I check All HDDs, But all of them seems good. So I Login with Putty, and type these commands;

mdadm -E /dev/sda3

mdadm -E /dev/sdb3

mdadm -E /dev/sdc3

mdadm -E /dev/sdd3

Except first HDD, other 3 HDD’s doesn have md superblock; Also I try “config_util 1” & “storage_boot_init 2” commands, but both of them gives error;

Costumer got RAID 5 (-l 5) with 4 HDD (-n 4), so ı type this command;

# mdadm -CfR –assume-clean /dev/md0 -l 5 -n 4 /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3

then mount with this command;

# mount /dev/md0 /share/MD0_DATA -t ext4

And works perfect.

Also here is Putty Steps;

login as: admin

admin@192.168.101.16′s password:

[~] # mdadm -E /dev/sda3

/dev/sda3:

Magic : a92b4efc

Version : 00.90.00

UUID : 2d2ee77d:045a6e0f:438d81dd:575c1ff3

Creation Time : Wed Jun 6 20:11:14 2012

Raid Level : raid5

Used Dev Size : 1951945600 (1861.52 GiB 1998.79 GB)

Array Size : 5855836800 (5584.56 GiB 5996.38 GB)

Raid Devices : 4

Total Devices : 4

Preferred Minor : 0

Update Time : Fri Jan 11 10:24:40 2013

State : clean

Active Devices : 4

Working Devices : 4

Failed Devices : 0

Spare Devices : 0

Checksum : 8b330731 – correct

Events : 0.4065365

Layout : left-symmetric

Chunk Size : 64K

Number Major Minor RaidDevice State

this 0 8 3 0 active sync /dev/sda3

0 0 8 3 0 active sync /dev/sda3

1 1 8 19 1 active sync /dev/sdb3

2 2 8 35 2 active sync /dev/sdc3

3 3 8 51 3 active sync /dev/sdd3

[~] # mdadm -E /dev/sdb3

mdadm: No md superblock detected on /dev/sdb3.

[~] # mdadm -CfR –assume-clean /dev/md0 -l 5 -n 4 /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3

mdadm: /dev/sda3 appears to contain an ext2fs file system

size=1560869504K mtime=Fri Jan 11 10:22:54 2013

mdadm: /dev/sda3 appears to be part of a raid array:

level=raid5 devices=4 ctime=Wed Jun 6 20:11:14 2012

mdadm: /dev/sdd3 appears to contain an ext2fs file system

size=1292434048K mtime=Fri Jan 11 10:22:54 2013

mdadm: array /dev/md0 started.

[~] # more /proc/mdstat

Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]

md0 : active raid5 sdd3[3] sdc3[2] sdb3[1] sda3[0]

5855836800 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]

md4 : active raid1 sda2[2](S) sdd2[0] sdc2[3](S) sdb2[1]

530048 blocks [2/2] [UU]

md13 : active raid1 sda4[0] sdc4[3] sdd4[2] sdb4[1]

458880 blocks [4/4] [UUUU]

bitmap: 0/57 pages [0KB], 4KB chunk

md9 : active raid1 sda1[0] sdc1[3] sdd1[2] sdb1[1]

530048 blocks [4/4] [UUUU]

bitmap: 1/65 pages [4KB], 4KB chunk

unused devices:

[~] # mount /dev/md0 /share/MD0_DATA -t ext4

[~] #

Here is Result;

..

IX – If None of These Guides Works;

For rarely, I cant solve these kind of problems on Qnap. and sometimes I plug HDD’s to another Qnap to solve these kind of problems.

User different Qnap which has different hardware to solve this kind of cases!;

When you plug HDD, and restart device, Qnap will ask you to to Migrate or Reinstall Qnap, choose “Migrate” Option.

In this case, Qnap coulnt boot at Ts-659 Pro, putty commands doesnt work and we cant even enter Qnap admin interface;

How To Fix HDD Based Problems With Another Qnap

HDD’s couldnt boot from Ts-659 Pro, but after installing different device (At this case, I plug them to Ts-509 Pro) device boots fine. But of course you must use 6 or more HDD supported Qnap to save your datas.

So, If evertything fails, Just try these process with another Qnap.

Obtained from this link

6
Jun

Hot-swapping the hard drives when the RAID crashes

“No server downtime when you need to replace the RAID drives”

Contents

Procedure of hot-swapping the hard drives when the RAID crashes

RAID 5 disk mirroring provides highly secure data protection. You can use two hard drives of the same capacity to create a RAID 5 array. The RAID 5 creates an exact copy of data on the member drives. RAID 5 protects data against single drive failure. The usable capacity of RAID 5 is the capacity of the smallest member drive. It is particularly suitable for personal or company use for important data saving.

Logical volume status when the RAID operates normally

When the RAID volume operates normally, the volume status is shown as Ready under ‘Disk Management’ > ‘Volume Management’ section.

When the RAID operates normally

When a drive fails, follow the steps below to check the drive status:

When RAID volume operates normally, the volume status is shown as Ready in the Current Disk Volume Configuration section.

  • The server beeps for 1.5 sec twice when the drive fails.
  • The Status LED flashes red continuously.
  • Check the Current Disk Volume Configuration section. The volume status is In degraded mode.

When RAID crashes

You can check the error and warning messages for drive failure and disk volume in degraded mode respectively in the Event Logs.

Log information for the drive plug out event

Note: You can send and receive alert e-mail by configuring the alert notification. For the settings, please refer to the System Settings/ Alert Notification section in the user manual.

Install a new drive to rebuild RAID 5 by hot swapping

Please follow the steps below to hot swap the failed hard drive:

  • Prepare a new hard drive to rebuild RAID 5. The capacity of the new drive should be at least the same as that of the failed drive.
  • Insert the drive to the drive slot of the server. The server beeps for 1.5 seconds twice. The Status LED flashes red and green alternatively.
  • Check the Current Disk Volume Configuration section. The volume status is Rebuilding and the progress is shown.

Log information for the drive plug out event

  • When the rebuilding is completed, the Status LED lights in green and the volume status is Ready. RAID 5 mirroring protection is now active.
  • You can check the disk volume information in the Event Logs.

Log information for the drive plug in and RAID rebuilding event

Note: Do not install the new drive when the system is not yet in degraded mode to avoid unexpected system failure.

Obtained from this link

6
Jun

ESET lanza la nueva versión de ESET NOD32 Mail Security compatible con Microsoft Windows Server 2012 y con Microsoft Exchange Server 2013

Madrid, 6 de junio de 2013 – ESET España, líder en protección proactiva contra todo tipo de amenazas de Internet con más de 25 años de experiencia, lanza la nueva versión de su producto de protección para correo corporativo ESET NOD32 Mail Security, ahora compatible con Microsoft Windows Server 2013 y con Microsoft Exchange Server 2013.

ESET NOD32 Mail Security para Microsoft Exchange Server combina una protección antivirus y antispam eficaz que garantiza el filtrado de todo el contenido malicioso en el correo electrónico a nivel del servidor. Ofrece protección total del servidor, incluyendo el propio sistema de archivos. Permite a los administradores de red aplicar políticas para contenidos específicos en función del tipo de archivos y gestionar el estado de la seguridad antivirus o ajustar su configuración con la herramienta de gestión centralizada y remota ESET NOD32 Remote Administrator.

La nueva versión de ESET NOD32 Mail Security incluye, entre otras, las siguientes novedades:

  • Compatible con Microsoft Windows Server 2012 y con Microsoft Exchange Server 2013.
  • Configuración completa de la función antispam desde la interfaz de producto.
  • eShell: ejecuta scripts para establecer la configuración o ejecutar una acción. eShell (ESET Shell) es una herramienta de interfaz por línea de comandos totalmente nueva. Además de todas las funciones y características accesibles desde la GUI (Interfaz gráfica del usuario), eShell permite automatizar la gestión de los productos de seguridad ESET.
  • Fácil y sencilla migración desde versiones anteriores: facilita al máximo el cambio a la nueva versión sin afectar al rendimiento del parque informático.

Otras características clave y beneficios

  • Protección antivirus y antiespía: analiza todos los correos entrantes y salientes a través de los protocolos POP3, SMTP e IMAP. Filtra las amenazas en el correo electrónico, incluso el spyware a nivel de la puerta de enlace. Proporciona todas las herramientas para la seguridad total del servidor, incluyendo la protección residente y el análisis bajo demanda. Además, está equipado con la avanzada tecnología Threatsense® que combina velocidad, precisión y un mínimo consumo de recursos contra todo tipo de amenazas de Internet, como rootkits, gusanos y virus.
  • Protección antispam: bloquea el correo no deseado y el phishing con un alto nivel de detección. El motor antispam mejorado le permite definir diferentes niveles antispam con mayor precisión. Toda la configuración del antispam está totalmente integrada en la interfaz del producto. Permite al administrador aplicar políticas para ciertos tipos de contenido en los documentos adjuntos del correo electrónico e incluye una nueva tecnología que evita que las soluciones de seguridad ESET sean modificadas o desactivadas por el malware.
  • Registros e informes: permite mantenerse al día del estado de su seguridad antivirus con registros y estadísticas exhaustivos. En cuanto a los registros de spam, muestra el remitente, el destinatario, el nivel de spam, el motivo de la clasificación como spam y la acción tomada. Permite controlar el rendimiento del servidor en tiempo real.
  • Fluidez: excluye automáticamente del análisis los archivos críticos del servidor (incluyendo las carpetas de Microsoft Exchange). El administrador de licencias incorporado fusiona automáticamente dos o más licencias registradas a nombre del mismo cliente. El nuevo instalador permite mantener toda la configuración al actualizar desde una versión anterior (4.2 o 4.3), y el control por línea de comandos eShell permite al administrador ejecutar scripts para realizar acciones o crear/modificar configuraciones.

ESET Mail Security para Microsoft Exchange Server está disponible para su prueba a través de la página web de ESET y se puede adquirir a través de la red de distribuidores de ESET NOD32 España o bien a través de su tienda online.

Obtenido de este enlace

Última actualización 05/03/2023 13:36