Disk Repair

[Katie Cooper]

Hi,

I need to repair some disks on my sicortex machine.  Has anyone done this before?  If so, could you give me any insight/help into this?  I'm a bit at a loss and can't get much help from the IT/HPC folks on campus.  Any help would be awesome. 

Thanks,

Katie

[Lawrence Stewart]

This should be straightforward.

If it is an SC072, then these are plain old SATA drives.  Anything the OS supports will

work.  If the size is different you might have to customize the install.

I'm not sure whether the SSP drives on the SC648, SC1458 and SC5832 are SATA or SCSI, but

if you unplug one you can look at the drive.

For drives in a storage array, you could either get the same kind or look at the

storage array documentation to see what it accepts.

-Larry

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[Katie Cooper]

Cool!  I feel less intimidated by this now.  I'm going to ask some more rather ignorant questions - is it as simple as power down, put in in disks and then power back up?  The failed disks came to my attention after a forced power outage - my machine never came back to life because of the failed disks.  So, I can't go through the normal power down procedures.  Is that going to be a problem?

Thanks,

katie

[Katie Cooper]

Cool!  I feel less intimidated by this now.  I'm going to ask some more rather ignorant questions - is it as simple as power down, put in in disks and then power back up?  The failed disks came to my attention after a forced power outage - my machine never came back to life because of the failed disks.  So, I can't go through the normal power down procedures.  Is that going to be a problem?

Thanks,

k

On Wednesday, November 5, 2014 12:10:58 PM UTC-8, Katie Cooper wrote:

[Lawrence Stewart]

This should be straightforward.

If it is an SC072, then these are plain old SATA drives.  Anything the OS supports will

work.  If the size is different you might have to customize the install.

I'm not sure whether the SSP drives on the SC648, SC1458 and SC5832 are SATA or SCSI, but

if you unplug one you can look at the drive.

For drives in a storage array, you could either get the same kind or look at the

storage array documentation to see what it accepts.

-Larry

On 2014, Nov 5, at 3:10 PM, Katie Cooper <drc...@gmail.com> wrote:

[Lawrence Stewart]

No, probably  not as simple as power down, swap disks, power up.

Presumably the old disk has something important on it, and the system isn't going to work

with a new disk that is blank.

If the disk is a boot disk for the system service processor, you will have to

restore from backup (hope you have one!) or reinstall the SiCortex software from the DVDs, by

following the System Admin guide.

If the disk is other storage, the system will likely start up, at least if you

take the extra disks out of the configuration and  boot scripts. but you will still have

to restore whatever data was on it, or recreate an empty file system.

If the disk was part of a RAID set, then yes, the system could in principle automatically deal

with the new disk, provided everything was configured right in the first place, but if that

were true, you wouldn't have a non-working machine in the first place.

The community might be able to offer more help if you can say which disk is bad and how you

know that (boot error messages? or what?).

-Larry