Help configuring cciss hardware RAID (raid10) on HP DL380

[yatesco]

Hi all,

I have a HP DL380 with a P410i hardware card (with 512 BBWC storage controller) configured with 4x250 SAS drives in RAID10.

pveperf:

CPU BOGOMIPS:      72535.19
REGEX/SECOND:      860226
HD SIZE:           94.49 GB (/dev/pve/root)
BUFFERED READS:    232.11 MB/sec
AVERAGE SEEK TIME: 5.03 ms
FSYNCS/SECOND:     186.11
DNS EXT:           31.34 ms
DNS INT:           16.93 ms (xxx.com)

The devices are accessible from /dev/cciss, but hdparm seems to struggle seeing them:

 hdparm -W /dev/cciss/c0d0

/dev/cciss/c0d0:

Any advice? Am I missing a driver or two?

Please help

 

[yatesco]

Never mind - turns out the RAID card didn't have the battery pack installed. I assume once this is installed everything will magically just work right?

 

[tom]

Never mind - turns out the RAID card didn't have the battery pack installed. I assume once this is installed everything will magically just work right?

FSYNCS/SECOND: 186.11
shows clearly that you haven´t enabled the write cache (write back). I do not know the HP controller in detail but yes, it looks that the controller does not allow write back without BBU. => install it!

 

[yatesco]

excellent - installing the battery pack activated write back:

CPU BOGOMIPS:      72535.02
REGEX/SECOND:      858256
HD SIZE:           94.49 GB (/dev/mapper/pve-root)
BUFFERED READS:    243.29 MB/sec
AVERAGE SEEK TIME: 5.04 ms
FSYNCS/SECOND:     2947.65
DNS EXT:           390.93 ms
DNS INT:           19.35 ms (xxx.com)