MIDRANGE dot COM Mailing List Archive

RE: Configuring Hot spare protection



If my configuration has one of each pair on a different loop, then I would need 2 hot spares, correct.


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Sue Baker
Sent: Tuesday, February 04, 2014 2:52 PM
To: midrange-l@xxxxxxxxxxxx
Subject: RE: Configuring Hot spare protection

"Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx> wrote on Tue, 04 Feb
2014 18:37:00 GMT:

I thought you needed a hot spare for each Raid set, or is that not

Minimum of 1 hot spare per adapter (SCSI and PCI-x SAS) or adapter pair (PCIe SAS adapters) for RAID5 protection.

Mirroring hot spare works differently and you could get by with just 1 drive designated as the hot spare for the whole ASP. I recommend 1 spare drive per loop to give best odds of maintaining loop level mirroring.

IBM Americas Advanced Technical Skills (ATS) Power Systems Rochester, MN
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.

Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2015 by MIDRANGE dot COM and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available here. If you have questions about this, please contact