Skip to main content

hp - Why isn't my RAID array rebuilding?



Got a notice last night that a drive failed on a server. Got in this morning to replace it, and we're getting the following. Controller config report for the array looks fine, with the unusual status Ready for Rebuild. 




 ~ # hpacucli controller all show config
Smart Array P400i in Slot 0 (Embedded)    (sn: XXXXXXXX     )
   array A (SAS, Unused Space: 0 MB)
   logicaldrive 1 (341.7 GB, RAID 5, Ready for Rebuild)
   physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 72 GB, OK)
   physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 72 GB, OK)
   physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 72 GB, OK)
   physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 146 GB, OK)
   physicaldrive 2I:1:5 (port 2I:box 1:bay 5, SAS, 72 GB, OK)

   physicaldrive 2I:1:6 (port 2I:box 1:bay 6, SAS, 72 GB, OK)


The logical drive shows a hint, Parity Initialization Status: Initialization Failed:



~ # hpacucli controller slot=0 logicaldrive 1 show 
Smart Array P400i in Slot 0 (Embedded)
   array A
      Logical Drive: 1
         Size: 341.7 GB

         Fault Tolerance: RAID 5
         Heads: 255
         Sectors Per Track: 32
         Cylinders: 65535
         Strip Size: 64 KB
         Full Stripe Size: 320 KB
         Status: Ready for Rebuild
         Array Accelerator: Enabled
         Parity Initialization Status: Initialization Failed
         Unique Identifier: XXXXXXX

         Disk Name: /dev/cciss/c0d0
         Mount Points: /boot 191 MB, / 28.6 GB
         OS Status: LOCKED
         Logical Drive Label: XXXXX     6797


Array configuration if it helps:



 ~ # /usr/sbin/hpacucli ctrl slot=0 show
Smart Array P400i in Slot 0 (Embedded)

   Bus Interface: PCI
   Slot: 0
   Serial Number: XXXXXXXX     
   Cache Serial Number: XXXXXXXX
   RAID 6 (ADG) Status: Enabled
   Controller Status: OK
   Hardware Revision: B
   Firmware Version: 1.18
   Rebuild Priority: Low
   Expand Priority: Low

   Surface Scan Delay: 15 secs
   Surface Scan Mode: Idle
   Post Prompt Timeout: 0 secs
   Cache Board Present: True
   Cache Status: OK
   Accelerator Ratio: 50% Read / 50% Write
   Drive Write Cache: Disabled
   Total Cache Size: 256 MB
   Total Cache Memory Available: 208 MB
   No-Battery Write Cache: Disabled

   Cache Backup Power Source: Batteries
   Battery/Capacitor Count: 1
   Battery/Capacitor Status: OK
   SATA NCQ Supported: False


How do I go about debugging this?



Edit:




All of the individual drives appear fine: 



~ # hpacucli controller all show config detail | grep Status
   RAID 6 (ADG) Status: Enabled
   Controller Status: OK
   Cache Status: OK
   Battery/Capacitor Status: OK
      Status: OK
         Status: Ready for Rebuild
         Parity Initialization Status: Initialization Failed

         OS Status: LOCKED
         Status: OK
         Status: OK
         Status: OK
         Status: OK
         Status: OK
         Status: OK


edit2:




I'm debugging some adverse interactions between hpaducli and grsec (also mp-SSH and Ubuntu) but we do have hpacucli diag results available, and buried in the Logical Drive Status Flags is Rebuild Aborted From Read Error. What confuses me here is how a read error during rebuild does not result in marking one of the drives predictive failure, or worse, but does cause a rebuild to stop.


Answer



Ready for Rebuild is a bad status if you're using a parity RAID level, like 5 or 6. It means that you likely have read errors on another drive in the array... e.g. another failing drive.



If the system is still online your best option is to recover data or rebuild. There's no good fix for this, and definitely not much you can do to debug.



See the following:



Force LUN in a HP Smart Array to rebuild




HP Proliant ML350 G5 SAS HDD



HP SmartArray P400: How to repair failed logical drive?



And of course: RAID-5: Two disks failed simultaneously?


Comments

Post a Comment

Popular posts from this blog

linux - iDRAC6 Virtual Media native library cannot be loaded

When attempting to mount Virtual Media on a iDRAC6 IP KVM session I get the following error: I'm using Ubuntu 9.04 and: $ javaws -version Java(TM) Web Start 1.6.0_16 $ uname -a Linux aud22419-linux 2.6.28-15-generic #51-Ubuntu SMP Mon Aug 31 13:39:06 UTC 2009 x86_64 GNU/Linux $ firefox -version Mozilla Firefox 3.0.14, Copyright (c) 1998 - 2009 mozilla.org On Windows + IE it (unsurprisingly) works. I've just gotten off the phone with the Dell tech support and I was told it is known to work on Linux + Firefox, albeit Ubuntu is not supported (by Dell, that is). Has anyone out there managed to mount virtual media in the same scenario?
Post a Comment
Read more

hp proliant - Smart Array P822 with HBA Mode?

We get an HP DL360 G8 with an Smart Array P822 controller. On that controller will come a HP StorageWorks D2700 . Does anybody know, that it is possible to run the Smart Array P822 in HBA mode? I found only information about the P410i, who can run HBA. If this is not supported, what you think about the LSI 9207-8e controller? Will this fit good in that setup? The Hardware we get is used but all original from HP. The StorageWorks has 25 x 900 GB SAS 10K disks. Because the disks are not new I would like to use only 22 for raid6, and the rest for spare (I need to see if the disk count is optimal or not for zfs). It would be nice if I'm not stick to SAS in future. As OS I would like to install debian stretch with zfs 0.71 as file system and software raid. I have see that hp has an page for debian to. I would like to use hba mode because it is recommend, that zfs know at most as possible about the disk, and I'm independent from the raid controller. For us zfs have many benefits, ...
Post a Comment
Read more

linux - Awstats - outputting stats for merged Access_logs only producing stats for one server's log

I've been attempting this for two weeks and I've accessed countless number of sites on this issue and it seems there is something I'm not getting here and I'm at a lost. I manged to figure out how to merge logs from two servers together. (Taking care to only merge the matching domains together) The logs from the first server span from 15 Dec 2012 to 8 April 2014 The logs from the second server span from 2 Mar 2014 to 9 April 2014 I was able to successfully merge them using the logresolvemerge.pl script simply enermerating each log and > out_putting_it_to_file Looking at the two logs from each server the format seems exactly the same. The problem I'm having is producing the stats page for the logs. The command I've boiled it down to is /usr/share/awstats/tools/awstats_buildstaticpages.pl -configdir=/home/User/Documents/conf/ -config=example.com awstatsprog=/usr/share/awstats/wwwroot/cgi-bin/awstats.pl dir=/home/User/Documents/parced -month=all -year=all...
Post a Comment
Read more