[cisco-voip] Braking a mirror

[Rasim Duric]

I've recently installed IPCCX 4.0(5) HA on the two MCS-7845 servers with
4x72 GB 15k RPM drives. All the other MCS-7845 servers we have are with
4x72 GB 10k RPM.

 

Since we have some spare 72 GB 10k RPM, I think it is OK to use these
disks (10k RPM) to mirror 15k RPM drives before an upgrade?

 

I'm usually interested in the data stored on the RAID Array A (slots 0
and 1) since the RAID Array B (slots 2 and 3) contains the TRACE files
(if configured) and in a disaster recovery situation they might not be
essential. Could I assume it is safe to mirror the RAID Array A only?

 

We also use MCS-7845 for our Unity (VM) off-box message stores. The
Array A contains the OS, Ex2K Transactional log files and other
programs, and the Array B contains the Message Store DB only. I do
backup the Message store every day on a shared network drive and this
shared drive is being backed up on the tape. After an upgrade/hotfixes I
keep the Array A mirror disk only. Let's say, I need to go back 2 weeks
and use my mirrored (Array A) drive. Of course, the old EX2K
transactional files don't match with the message store DB in Array B.
Would I be able to mount the Message Store DB assuming the familiarity
with the eseutil.exe and/or calling the MS exchange support?

 

 

Note: 

I do shut down servers before breaking a mirror and am aware that
mirroring a drive is not supported method for a regular backup but
remirroring is a part of our preventative maintenance once per month. 

 

TIA   

 

Rasim Duric
Network Analyst (CCS)
University of Guelph
Guelph, N1G 2W1, ON
519-824-4120x53146
rduric at uoguelph.ca

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