specification - Array Accelerator Battery

[cla1]

Hi,

   I need to change "array accelerator battery" of an HP RX2660 Itanium server.

  Where can I get the specification of it? (I need to buy it).

  I have to  firstchange bad disks. Will I have any problem  if I shutdown  / reboot the machine without

changing this battery? 

Claudia

[jsm6]

Hi

What type of raid controller is that?

Is it onboard multi-port sas controller or an additional P400 controller?

sasmgr/sautil output should show the details of the controller.

Also how many "bad disks" are those? Data or OS? Is it part of Raid volume?

Again you really need not to shutdown server to replace those disks (if they are part of HW raid).

Thanks and Regards.

[cla1]

Hi.

   I have 2  bad disks from a raid 5 with spare disk (1 disk is bad and also the spare disk). I asked 2 weeks ago - see the

entry  "doubt  - replace disk - HPUX Itanium"  from 2 weeks ago.

  I received the disks only now. I could find only used disks.

 Where | can get the specification of this battery? I need to buy it.

 Can I continue to work with the server even if I  do not replace the battery (in case I don'f find it)?

  Below the sautil and saconfig output:

******************** SmartArray RAID Controller /dev/ciss1 ********************

Auto-Fail Missing Disks at Boot = disabled
Cache Configuration Status = write cache temporarily disabled (code=1)
Cache Ratio = 25% Read / 75% Write

---------- PHYSICAL DRIVES ----------

Location Ct Enc Bay WWID Size Status

Internal 1I 1 7 0x5000c5000adf297d 146.8 GB OK
Internal 1I 1 6 0x5000c5000717fea1 146.8 GB OK

---------- LOGICAL DRIVE 0 ----------

Device File = c1t0d0
RAID Level = 5
Size = 279960 MB
Stripe Size = 64 KB
Status = USING INTERIM RECOVERY MODE

Participating Physical Drive(s):

Ct Enc Bay WWID
1I 1 8 0x5000c500012f08d9
1I 1 7 0x5000c5000adf297d
1I 1 6 0x5000c5000717fea1

Participating Spare Drive(s):

Ct Enc Bay WWID
1I 1 5 0x5000c50007180f2d

=====================================================

Look the sautil output:

******************************************************************************
**** ****
**** S A U T I L S u p p o r t U t i l i t y ****
**** ****
**** for the HP SmartArray RAID Controller Family ****
**** ****
**** version A.02.12 ****
**** ****
**** (C) Copyright 2003-2007 Hewlett-Packard Development Company, L.P. ****
******************************************************************************

---- DRIVER INFORMATION ------------------------------------------------------

Driver State........................ READY

---- CONTROLLER INFORMATION --------------------------------------------------

Controller Product Number........... P400
Controller Product Name............. HP PCIe SmartArray P400
Hardware Path....................... 0/3/0/0/0/0
Serial Number....................... Confidential Info Erased
Device File......................... /dev/ciss1
Hardware Revision................... 'D'
Boot Block Revision................. 0.02
Firmware Revision (running)......... 2.08
Firmware Revision (in ROM).......... 2.08
Firmware Revision (inactive)........ 2.08
# of Logical Drives................. 1
# of Physical Disks Configured...... 4
# of Physical Disks Detected........ 2
Logical Drive Rebuild Priority...... 0 (low)
Array Capacity Expansion Priority... 0 (low)
Auto-Fail Missing Disks at Boot..... disabled
SCSI Transfer Detection Mode........ Auto Detect

---- ARRAY ACCELERATOR (CACHE) INFORMATION -----------------------------------

Array Accelerator Board Present?.... yes
Cache Configuration Status.......... write cache temporarily disabled (code=1)
Cache Ratio......................... 25% Read / 75% Write
Total Cache Size (MB)............... 208
Read Cache........................ 052
Write Cache....................... 156
Transfer Buffer................... 000
Battery Pack Count.................. 1
Battery Status (pack #1)............ FAILED

---- LOGICAL DRIVE SUMMARY ---------------------------------------------------

# RAID Size Status

0 5 279960 MB USING INTERIM RECOVERY MODE

---- SAS/SATA DEVICE SUMMARY -------------------------------------------------

Location Ct Enc Bay WWID Type Capacity Status

N/A 1I 1 8 0x5000c500012f08d9 N/A N/A FAILED
internal 1I 1 7 0x5000c5000adf297d DISK 146.8 GB OK
internal 1I 1 6 0x5000c5000717fea1 DISK 146.8 GB OK
N/A 1I 1 5 0x5000c50007180f2d N/A N/A FAILED

---- SAS/SATA ENCLOSURE SUMMARY ----------------------------------------------

Location Ct Enc Expander_count Bay_count SEP_count

internal 1I 1 0 4 1
internal 2I 1 0 4 1

---- LOGICAL DRIVE 0 ---------------------------------------------------------

Logical Drive Device File........... c1t0d0
Fault Tolerance Mode................ RAID 5 (Distributed Data Guarding)
Logical Drive Size.................. 279960 MB
Logical Drive Status................ USING INTERIM RECOVERY MODE
# of Participating Physical Disks... 3

Participating Physical Disk(s)...... Ct:Enc:Bay:WWID
:0:0:0x0000000000000000 <-- NOT RESPONDING
1I:1:7:0x5000c5000adf297d
1I:1:6:0x5000c5000717fea1

Participating Spare Disk(s)......... Ct:Enc:Bay:WWID
1I:1:5:0x5000c50007180f2d <-- NOT RESPONDING

Stripe Size......................... 64 KB
Logical Drive Cache Status.......... write cache temporarily disabled (code=1)
Configuration Signature............. 0xA7168F9D
Media Exchange Detected?............ no

---- SAS/SATA DEVICE 1I:1:7:0x5000c5000adf297d [DISK] ------------------------

Connector Location............................... internal
Connector........................................ 1I
Enclosure........................................ 1
Bay.............................................. 7
WWID............................................. 0x5000c5000adf297d
Device Type...................................... DISK
Disk Capacity.................................... 146.8 GB
Device Status.................................... OK
Device Vendor ID................................. SEAGATE
Device Product ID................................ ST914602SSUN146G
Device Serial Number............................. -
Device Firmware Version.......................... 0603
Reserved Area (cfg/status info).................. 33554.4 KB (33.6 MB)
Block Size (bytes/sector)........................ 512 bytes
M&P Data Stamped?................................ no
Last Failure Reason.............................. MARK BAD FAILED

Physical Disk Flags:
Disk present and operational................... yes
Non-disk device detected....................... no

S.M.A.R.T. supported........................... yes
S.M.A.R.T. errors (in factory M&P data)........ no
S.M.A.R.T. enabled............................. yes
S.M.A.R.T. errors (in powerup M&P data)........ no
Attached to external connector................. no
Configured in a logical drive.................. yes
Configured as a spare disk..................... no
Disk write cache enabled at spin up............ no

Supports redundant controller operation........ no
Disk write cache enabled in current page....... no
Disk write cache disabled in default page...... no

---- SAS/SATA DEVICE 1I:1:6:0x5000c5000717fea1 [DISK] ------------------------

Connector Location............................... internal
Connector........................................ 1I
Enclosure........................................ 1
Bay.............................................. 6
WWID............................................. 0x5000c5000717fea1
Device Type...................................... DISK
Disk Capacity.................................... 146.8 GB
Device Status.................................... OK
Device Vendor ID................................. HP
Device Product ID................................ DG146ABAB4
Device Serial Number............................. -
Device Firmware Version.......................... HPD7
Reserved Area (cfg/status info).................. 33554.4 KB (33.6 MB)
Block Size (bytes/sector)........................ 512 bytes
M&P Data Stamped?................................ yes
Last Failure Reason.............................. none

Physical Disk Flags:
Disk present and operational................... yes
Non-disk device detected....................... no

S.M.A.R.T. supported........................... yes
S.M.A.R.T. errors (in factory M&P data)........ no
S.M.A.R.T. enabled............................. yes
S.M.A.R.T. errors (in powerup M&P data)........ no
Attached to external connector................. no
Configured in a logical drive.................. yes
Configured as a spare disk..................... no
Disk write cache enabled at spin up............ no

Supports redundant controller operation........ no
Disk write cache enabled in current page....... no
Disk write cache disabled in default page...... yes

******************************************************************************
**** End of SAUTIL Output ****
******************************************************************************

   Regards.

Claudia

[jsm6]

Hi,

You can find the Battery pack part number in below link

https://support.hpe.com/hpesc/public/docDisplay?docId=c00707372 (BBWC battery pack)

Refer below smart array guide and this should help you to understand more about the controller/battery.

https://support.hpe.com/hpesc/public/docDisplay?docLocale=null&docId=emr_na-c02011726

And regarding the drives, I beleive this is your boot logical drive (pls confirm).

If yes, and after backup - you may replace the disk(s) one by one online...starting with bay 8 and spare disk later.
Wait for logical drive to complete rebuilding after replacement (bay 8).

Logical Drive Device File........... c1t0d0
Fault Tolerance Mode................ RAID 5 (Distributed Data Guarding)
Logical Drive Size.................. 279960 MB
Logical Drive Status................ USING INTERIM RECOVERY MODE
# of Participating Physical Disks... 3

Participating Physical Disk(s)...... Ct:Enc:Bay:WWID
:0:0:0x0000000000000000 <-- NOT RESPONDING
1I:1:7:0x5000c5000adf297d
1I:1:6:0x5000c5000717fea1

Participating Spare Disk(s)......... Ct:Enc:Bay:WWID
1I:1:5:0x5000c50007180f2d <-- NOT RESPONDING

Thanks and Regards.

[cla1]

Hi.

The replace of the disks worked (hot swap). Thank you.

Could not access the manuals you mentioned. (it returned an error that iI need a employee login).

What do I lose if I don't change this battery? I searched at web and it seems that in case of an external power loss

it won't safeguard cached data but the system works normally while the power is up.  Is that correct?

Thank you for your help.

Cláudia

[jsm6]

Hi,

Not sure why the link asks for Employee login as its a public document.

Just search for "hpe p400 bbwc spare part" in google and that should take you to a public hpe document with spare parts list (or) please log a TRADE call with HPE and we can do the replacement.

Good that you were able to replace the disks successfully.

As you could see, your cache will be disabled until you replace the Battery and there might be a litltle performance degradation.

---- ARRAY ACCELERATOR (CACHE) INFORMATION -----------------------------------

Array Accelerator Board Present?.... yes
Cache Configuration Status.......... write cache temporarily disabled (code=1)           >>>>
Cache Ratio......................... 25% Read / 75% Write
Total Cache Size (MB)............... 208
Read Cache........................ 052
Write Cache....................... 156
Transfer Buffer................... 000
Battery Pack Count.................. 1
Battery Status (pack #1)............ FAILED   >>>>>

If its not that noticeable,you may wait for Battery repacement for a later time.However if the performance impact is too high, then consider changing the battery at the earliest.

I believe there is an option to change the cache settings to "No-Battery Write Cache" (check man page for saconfig/sautil)

And yes, unless there is a power loss there will be no impact on the cached data (again the cache is  temporarily disabled now)

Thanks and Regards.

[Torsten.]

spare parts:

https://support.hpe.com/hpesc/public/docDisplay?docId=c00707372

398648-001

BBWC Battery Pack (4.8V, 500mAh, Ni-MH battery) - For use with 512MB battery backed write cache (BBWC) module.