База знаний » RAID контроллеры

h1. Изъятие сбойного диска из массива

h1. Собираем информацию о диске

http://serverfault.com/questions/381177/megacli-get-the-dev-sd-device-name-for-a-logical-drive

Нас интересует 'Target Id' из вывода

*megacli -ldinfo -Lall -aall*

<pre>

Virtual Drive: 5 (Target Id: 5)

Name                :r0-2-ssd

</pre>

Поставил lshw, сравниваем 'Target Id' и 'bus info':

<pre>

bus info: scsi@0:2.5.0

logical name: /dev/sdf

</pre>

Смотрим какой раздел находится на этом диске:

*lvs -o +seg_pe_ranges |grep /dev/sdf*

<pre>

ssd-kvm321-chi-slave-db       ssd   -wi-ao-- 400.00g      /dev/sdf:2560-104959 

</pre>

Собираем информацию по "Other Error Count: 1".

*megacli AdpEventLog -GetEvents -f megacli.log -a0*

Из файла megacli.log:

<pre>

===========

Device ID: 15

Enclosure Index: 32

Slot Number: 15

Error: 3

seqNum: 0x00000f9a

Time: Sun Sep  7 15:54:17 2014

Code: 0x00000071

Class: 0

Locale: 0x02

Event Description: Unexpected sense: PD 0f(e0x20/s15) Path 500056b36789abdc, CDB: 2a 00 17 6e 08 00 00 00 80 00, Sense: 6/29/00

Event Data:

===========

</pre>

<pre>

Slot Number: 15

Серийный номер: OCZ-6R12G0UG3MU5KHK2OCZ-VERTEX460

SCSI WWN: 5e83a970e3f8ae05

</pre>

h3. Смотрим какому виртуальному устройству соответствует сбойный физический диск

*megacli -LdPdInfo -a0 -nolog*

<pre>

Virtual Drive: 5 (Target Id: 5)

Name                :r0-2-ssd

RAID Level          : Primary-0, Secondary-0, RAID Level Qualifier-0

Size                : 446.625 GB

Sector Size         : 512

Parity Size         : 0

State               : Optimal

Strip Size          : 64 KB

Number Of Drives    : 1

Span Depth          : 1

Default Cache Policy: WriteBack, ReadAdaptive, Direct, No Write Cache if Bad BBU

Current Cache Policy: WriteBack, ReadAdaptive, Direct, No Write Cache if Bad BBU

Default Access Policy: Read/Write

Current Access Policy: Read/Write

Disk Cache Policy   : Disk's Default

Encryption Type     : None

Default Power Savings Policy: Controller Defined

Current Power Savings Policy: None

Can spin up in 1 minute: No

LD has drives that support T10 power conditions: No

LD's IO profile supports MAX power savings with cached writes: No

Bad Blocks Exist: No

Is VD Cached: No

Number of Spans: 1

Span: 0 - Number of PDs: 1

PD: 0 Information

Enclosure Device ID: 32

Slot Number: 15

Drive's position: DiskGroup: 5, Span: 0, Arm: 0

Enclosure position: 1

Device Id: 15

WWN: 5e83a970e3f8ae05

Sequence Number: 2

Media Error Count: 0

Other Error Count: 3

Predictive Failure Count: 0

Last Predictive Failure Event Seq Number: 0

PD Type: SATA

Raw Size: 447.130 GB [0x37e436b0 Sectors]

Non Coerced Size: 446.630 GB [0x37d436b0 Sectors]

Coerced Size: 446.625 GB [0x37d40000 Sectors]

Sector Size:  0

Firmware state: Online, Spun Up

Device Firmware Level: 1.0 

Shield Counter: 0

Successful diagnostics completion on :  N/A

SAS Address(0): 0x500056b36789abdc

Connected Port Number: 0(path0) 

Inquiry Data: OCZ-6R12G0UG3MU5KHK2OCZ-VERTEX460                           1.0     

FDE Capable: Not Capable

FDE Enable: Disable

Secured: Unsecured

Locked: Unlocked

Needs EKM Attention: No

Foreign State: None 

Device Speed: 6.0Gb/s 

Link Speed: 6.0Gb/s 

Media Type: Solid State Device

Drive:  Not Certified

Drive Temperature : N/A

PI Eligibility:  No 

Drive is formatted for PI information:  No

PI: No PI

Port-0 :

Port status: Active

Port's Linkspeed: 6.0Gb/s 

Drive has flagged a S.M.A.R.T alert : No

</pre>

h3. Смотрим массив

*megacli -LDGetProp -Name -L5 -a0 -nolog*

<pre>

Adapter 0-VD 5(target id: 5): Name: r0-2-ssd

Exit Code: 0x00

</pre>

h1. Выводим диск

h2. Разбираем массив

*megacli -CfgLdDel -L5 -a0 -nolog*

<pre>

Adapter 0: Deleted Virtual Drive-5(target id-5)

Exit Code: 0x00

</pre>

h2. Смотрим физический диск по его Enclosure Device ID и Slot Number - [E:S]

*megacli -pdInfo -PhysDrv [32:15] -a0 -nolog*

<pre>

Enclosure Device ID: 32

Slot Number: 15

Enclosure position: 1

Device Id: 15

WWN: 5e83a970e3f8ae05

Sequence Number: 3

Media Error Count: 0

Other Error Count: 3

Predictive Failure Count: 0

Last Predictive Failure Event Seq Number: 0

PD Type: SATA

Raw Size: 447.130 GB [0x37e436b0 Sectors]

Non Coerced Size: 446.630 GB [0x37d436b0 Sectors]

Coerced Size: 446.625 GB [0x37d40000 Sectors]

Sector Size:  0

Firmware state: Unconfigured(good), Spun Up

Device Firmware Level: 1.0 

Shield Counter: 0

Successful diagnostics completion on :  N/A

SAS Address(0): 0x500056b36789abdc

Connected Port Number: 0(path0) 

Inquiry Data: OCZ-6R12G0UG3MU5KHK2OCZ-VERTEX460                           1.0     

FDE Capable: Not Capable

FDE Enable: Disable

Secured: Unsecured

Locked: Unlocked

Needs EKM Attention: No

Foreign State: None 

Device Speed: 6.0Gb/s 

Link Speed: 6.0Gb/s 

Media Type: Solid State Device

Drive:  Not Certified

Drive Temperature : N/A

PI Eligibility:  No 

Drive is formatted for PI information:  No

PI: No PI

Port-0 :

Port status: Active

Port's Linkspeed: 6.0Gb/s 

Drive has flagged a S.M.A.R.T alert : No

Exit Code: 0x00

</pre>

http://tech.2499.pl/?p=96

h2. 1. Перевод в offline (пропускаем)

Так как у нас диск в статусе "Firmware state: Unconfigured(good), Spun Up", то переводить его в offline не нужно.

Он был бы в online если бы принадлежал одному из логических дисков.

*-megacli -PDOffline -PhysDrv [32:15] -a0 -nolog-*

<pre>

Adapter: 0: Failed to change PD state at EnclId-32 SlotId-15.

Exit Code: 0x01

</pre>

h2. 2. Помечаем диск, как отсутствующий

*-megacli -PDMarkMissing -PhysDrv [32:15] -a0 -nolog-*

<pre>

Adapter: 0: Failed to change PD state at EnclId-32 SlotId-15.

FW error description: 

  The specified device is in a state that doesn't support the requested command.  

Exit Code: 0x32

</pre>

Не сработало. Видимо так и нужно на контроллерах PERC H710P

Mark the drive as missing (seems to not work on R510 H700 card, so just do the next step)

http://www.maths.cam.ac.uk/computing/docs/public/megacli_raid_lsi.html

h2. 3. Подготавливаем диск к изъятию

*megacli -PdPrpRmv -PhysDrv [32:15] -a0 -nolog*

<pre>

Prepare for removal Success

Exit Code: 0x00

</pre>

после этого шага меняется: Firmware state: Unconfigured(good), Spun down

h2. 4. Включаем подсветку диска

*megacli -PdLocate -start -PhysDrv [32:15] -a0 -nolog*

<pre>

Adapter: 0: Device at EnclId-32 SlotId-15  -- PD Locate Start Command was successfully sent to Firmware 

Exit Code: 0x00

</pre>

h2. 5. Изъятие диска

h2. 6. Проверка, тот ли изъяли

*megacli -pdinfo -physdrv [32:15] -aall -nolog*

<pre>

Adapter 0: Device at Enclosure - 32, Slot - 15 is not found.

Exit Code: 0x00

</pre>

Все верно