topic Re: XP Raid Manager - pairresync question in Disk Enclosures

XP Raid Manager - pairresync question

Derek Brown — Fri, 17 Jul 2009 14:09:52 GMT

Hi guys,

I think the answer to my question is a straight yes or no, but any extra info I can garner from you would be good.

We've set up 2 business copies i.e. the same set of P-VOLs is being copied to two different sets of S-VOLS and this is working very well. My question is this, assuming the BC's are Split, does it matter if you kick off a Merge (pairresync) of BOTH BCs at the same time ?

I'm asking because the source data for both sets of copies is the same and I'm wondering if it will get itself upset about copying to two different locations at the same time ? or is it simply the case that you can do it but it may take a little longer because of I/O contention.

Thanks

Re: XP Raid Manager - pairresync question

Duncan Edmonstone — Fri, 17 Jul 2009 14:22:47 GMT

Derek,

I'm thinking that the XP would always maintain a set of bitmaps for *each* SVOL, and therefore syncing the 2 at the same time would not be a problem (as you said it might take slightly longer)

HTH

Duncan

Re: XP Raid Manager - pairresync question

IBaltay — Sat, 18 Jul 2009 03:13:43 GMT

Hi,
maybe this could help you:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01632883/c01632883.pdf?jumpid=reg_R1002_USEN

Re: XP Raid Manager - pairresync question

Nigel Poulton — Mon, 20 Jul 2009 13:45:19 GMT

The answer to your question is "No".

The XP will cope with this. If something like this were able to confuse the XP and corrupt data then nobody would buy XPs and they would be considered the worst storage arrays on the market. Clearly they are not ;-)

Always worth checking though ;-)

Re: XP Raid Manager - pairresync question

ks6542 — Thu, 23 Jul 2009 19:34:55 GMT

It is possible without any problem,it just may took bit long time..

Re: XP Raid Manager - pairresync question

Derek Brown — Tue, 28 Jul 2009 07:36:51 GMT

Thank you for all help. My question is answered.