Re: 8203-E4A RAID5 vs. ASP protection

Kinda late on this but been very busy. (*Sigh*)

Do remember the old 'Hot Spare trick.'

You can mark as many drives as you'd like to be hot spares. Then start RAID with hot spare. Then when you are done, just stop the drive or dives from being a hot spare. Now it's an unused drive again.

- DrF

On 3/2/2024 9:34 AM, Jim Oberholtzer wrote:

Yep, you’ll need to pull the drive(s) you do not want in the RAID set. Clearly that also means it can’t be part of the system ASP either.

We used to fight with that aspect of starting RAID all the time. When adding drives, we would add them two at a time so we could include them in the RAID.

Now with the later RAID cards and software updates we have significantly more flexibility.


Jim Oberholtzer
Agile Technology Architects

On Mar 2, 2024, at 8:22 AM, Patrik Schindler <poc@xxxxxxxxxx> wrote:

Hello Rob,

Am 01.03.2024 um 16:18 schrieb Rob Berendt <robertowenberendt@xxxxxxxxx>:

Isn't another option to IPL into DST, turn off RAID, then turn RAID back on
and just leave off the offending disk?

Tried this. Switching off parity took ages, to free up the parity space and add it to the ASP.

When switching parity back on, I have no choice to select which disks should be part of the parity set. Duh!

Okay, so I need to switch it off prior to when we're at the DC next time anyway to pull the disk in question and re-enable parity with the five remaining disks.

:wq! PoC

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/midrange-l.

Please contact support@xxxxxxxxxxxxxxxxxxxx for any subscription related questions.