[cisco-voip] Break Mirror on HP MCS

[Klaczko, Edwin]

Sounds like a little of each.  Thanks to everyone for their input it was
helpful.  I have another question.  For RAID 1 does it matter which slot
I put the spare drive into?  Ex.  I pull a drive from slot 1 and keep as
emergency backup.  Insert a spare and have it rebuild (does it need to
be blank or can it have old data?).  Perform upgrade and system has
problems so I want to go back.  If I pull both drives out and insert the
emergency backup into slot 0 and powerup the server this is no problem
correct?  Or do I need to put the emergency into slot 1 power up and
then insert another into slot 0 to rebuild the mirror.  I think there
are a couple questions in there somewhere.

 

 

 

Eddie Klaczko

IP Telephony / Network Specialist

CC Schaumburg School District 54

eklaczko at sd54.org

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From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Keith Klevenski
Sent: Friday, November 03, 2006 10:13 AM
To: Jason Aarons (US); cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Break Mirror on HP MCS

 

I've always just pulled the drive and put in a spare and let it rebuild
on our ancient 7835's.  good info here tho.

 

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From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Jason Aarons
(US)
Sent: Friday, November 03, 2006 10:03 AM
To: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Break Mirror on HP MCS

 

You can't pull a SATA drive in a MCS-7825 hot, but I've pulled many SCSI
drives from DL-380s hot. The Event Viewer logs do a great job of showing
what's happening with the SCSI controller and the raid re-builds.  A
36GB drive takes almost exactly 45 minutes to re-build, it's all done in
Compaq hardware versus software.  Sure if you could power it off that
would be recommend, but I've seen a few sites with single MCS-7835 and
had to break the raid mirror couple days before a upgrade and powering
down wasn't a option.

 

Would you pull a 6724 or NAM or IDS module in/out of a 6509 hot?  Some
would say sure, others have lost switches on "hot-swappable" parts!

 

I know the IBM x440s we had you could replace CPUs and RAM hot in
production, only thing you couldn't swap hot was the motherboard!
24x7x365 non-stop computing!

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From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Voll, Scott
Sent: Friday, November 03, 2006 10:48 AM
To: Klaczko, Edwin; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Break Mirror on HP MCS

 

I always shut down the Server.... Pull the drive.... Power up the
server.... Then put in the new drive.

 

I have never pulled a drive in use.  Probably not the best option.

 

Scott

 

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From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Klaczko, Edwin
Sent: Friday, November 03, 2006 6:17 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Break Mirror on HP MCS

 

I've ordered some spare HDs and wanted to use them to keep an extra
backup.  I'm used to working with Dell servers and had a bad experience
pulling a hot-swap drive live.  Their RAID controller allows you to
power down a drive to remove it.  I couldn't find a similar feature on
the HP interface.  Is this necessary or is it safe just to pull the
drive live.  Any help would be appreciated.

 

 

Eddie Klaczko

IP Telephony / Network Specialist

CC Schaumburg School District 54

eklaczko at sd54.org

 

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