Chris,
The 6402 is a good solid controller, IIRC, it has 128MB of cache. I also believe that it has 2 channels, you could split the MSA 30 in half if you have 2 channels on it as well.
Hot spare disks are per array, not logical drive, if you just made one big array, with 2 logical drives, you'll be fine with one hot spare. I have had occasions where a disk goes out during the day, and I called at 4PM, by the time I came in at 8 the next morning, the replacement was sitting there waiting for me. That was just standard warranty service too. Then again, I have had occasions where it took a good bit longer to get replacement parts to my location. I think that disks should be a fairly safe bet, they have lots of spares for that common a part.
So, you are booting from internal disks? If so, the internal disk would be /dev/cciss/c0d0p1 etc, and the MSA would most likely be /dev/cciss/c1d0p0 and c1d1p0
There is a possibility that what Jason mentioned is the case for the 6402, I forget which drivers it uses, they could use the older ones, in that case it would be /dev/ida/c1d0p0 etc.
I sure hope that this isn't becoming more confusing that it started out.
Kevin
Chris Bullock wrote:
I used the onboard controller for the OS partiton. I used a HP 6402 controller for the direct attached storage, that card has more circuitry than most workstations. As far as using a hot spare, if we lose 1 disk I would hope that we could get a replacement before losing another one. HP usually has us another disk within 24 hours, however I have been contemplating using a hot spare. My question is that since the controller will not support a logical drive larger than 2TB must I have a hot spare for each logical drive. Thanks, Chris --- Kevin Flanagan <[EMAIL PROTECTED]> wrote:
Chris,
It's like ARC boot, /dev/cciss/"Controller#,Drive#,Partition#"
The first disk should be /dev/cciss/c0d0p1 - px
The second one should be /dev/cciss/c0d1p1 - px
So, your RHEL installation most likely created file systems such as,
/boot on /dev/cciss/c0d0p1 ~100MB swap on /dev/cciss/c0d0p2 / on /dev/cciss/c0d0p3
"fdisk /dev/cciss/c0d1" should let you create partition(s) on the second
logical drive.
Did you use the onboard RAID card in the DL380? If so, it's not going to provide the best performance for such large file systems, it's really
designed for booting from, and some fairly straight forward stuff like web content, where the OS will cache much of the content anyways. Another thing to think about is spare disks, if you didn't save one disk
for a hot spare you might want to reconsider it, if you were to leave one disk out of the array you can make it be be the spare for as many arrays as there are on the one controller.
Hope this helps,
Kevin
Chris Bullock wrote:
I can't seem to get the manual fdisk partition thing down. Got a new
HP
DL360 with a direct attached HP MSA 30. The DL360 has a RAID card
that
limits the file size to 2TB. The MSA 30 has 14 300GB scsi drives. I
have
configured the RAID controller to have 2 logical drives both with
1.5TB
logical drives. Installed RHEL and it will not let me create the partitions the size I want at install time. This is what I need, I
have
the OS on the RAID1 logical drive on the DL360. The problem comes
when I
try to fdisk the other direct attached storage. First, how do I know
what
to fdisk? I know I need to start with /dev/cciss/?? but there are
2052
possibilites after that. I would assume after I find what device I
want to
fdisk, i would run fdisk /dev/cciss/$drive, then n for the new
partition.
after that I would assume to mkfs.ext3 and after that create a lable
and
add it to fstab. Any help would be appreciated, email or web link. Regards, Chris
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