Re: Recovery of Exchange - was: backing up Exchange
1999-07-23 11:02:02
Nathan......I realize you think you're having a problem, but I would love to
have a 15GB restore or backup rate to an NT client for any data. We get
about 8GB per hour on a restore and about 10GB per hour on a backup for NT
clients. (UNIX clients get about 19GB per hour to the same server/same
network). The server is a RS6000-H50 running AIX 4.3.1, ADSM 3.1.2.16. The
client is a Compaq Pro-Reliant running NT 4.0, ADSM client 3.1.0.3. How
does your environment differ from ours?
> -----Original Message-----
> From: Nathan King [SMTP:nathan.king AT USAA DOT COM]
> Sent: Friday, July 23, 1999 8:08 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Recovery of Exchange - was: backing up Exchange
>
> John,
>
> I have yet to encounter a problem restoring an Exchange Database with the
> Adsm Connect Agent.
> Let me take that back.. we have had problems but not related to the
> Connect
> Agent and I've restored well over 50 Exchange databases so far - either
> for
> the purpose of mailbox restore or for loss of server.
>
> I'm still trying to work out however why our recoveries take much longer
> than the backup.
>
> When backing up straight to tape we reach about 30Gb/hr, however restore
> is
> about 15Gb/hr.
> That's a pefectly acceptable restore rate but I'm curious as to the
> dramatic
> loss of speed.
>
> I understand that you are going to loose some speed because you are
> writing
> data rather than reading it.
> Our Exchange Servers also have write cacheing disabled to improve
> reliability - this also slows down a restore - enabling write cacheing
> boosted the restore up to almost 18Gb/hr.
>
> I still can't believe that restores are giving half the throughput of the
> backup. I've a feeling it's a network tuning parameter on our Rs/6000.
> Anyone any ideas?
>
> Nathan
>
>
>
> -----Original Message-----
> From: Talafous, John G. [SMTP:Talafous AT TIMKEN DOT COM]
> Sent: Friday, July 23, 1999 6:54 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Recovery of Exchange - was: backing up Exchange
>
> It's nice to see success stories regarding backup of Exchange with
> the
> Connect Agent.
> Does anyone wish to share success stories on the recovery process?
> How easy
> is
> it? Hardware considerations? Any gotchas?
>
> John G. Talafous Sr. Tech. Prog/Anal
> The Timken Company Phone: (330)-471-3390
> P.O. Box 6927 Fax : (330)-471-4034
> 1835 Dueber Ave. S.W.
> Canton, Ohio USA 44706-0927
> talafous AT timken DOT com http://www.timken.com/
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- Re: Recovery of Exchange - was: backing up Exchange, (continued)
- Re: Recovery of Exchange - was: backing up Exchange, Weeks, Debbie
- Re: Recovery of Exchange - was: backing up Exchange, Jordan, Chris (ELS)
- Re: Recovery of Exchange - was: backing up Exchange, Eliza Lau
- Re: Recovery of Exchange - was: backing up Exchange, Nathan King
- Re: Recovery of Exchange - was: backing up Exchange, Weeks, Debbie
- Re: Recovery of Exchange - was: backing up Exchange, Eliza Lau
- Re: Recovery of Exchange - was: backing up Exchange, Jordan, Chris (ELS)
- Re: Recovery of Exchange - was: backing up Exchange, Nathan King
- Re: Recovery of Exchange - was: backing up Exchange, Weeks, Debbie
- Re: Recovery of Exchange - was: backing up Exchange, Weeks, Debbie
- Re: Recovery of Exchange - was: backing up Exchange,
Helms, William H. <=
- Re: Recovery of Exchange - was: backing up Exchange, Trevor Foley
- Re: Recovery of Exchange - was: backing up Exchange, Chris Zaremba
- Recovery of Exchange - was: backing up Exchange, Talafous , John G . [mailto:Talafous
- Re: Recovery of Exchange - was: backing up Exchange, Nathan King [mailto:nathan.king
- Re: Recovery of Exchange - was: backing up Exchange, Nathan King [mailto:nathan.king
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