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Exchange Recovery Times
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Exchange Recovery Times - 7.May2012 1:56:41 PM
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Gigabitz
Posts: 85
Joined: 27.May2008
Status: offline
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Hello all it's been a while since I had to touch 2003. I have inherited a disaster and need to refresh my memory. I know it's based on the hardware and network, but what is the recovery time. Meaning isn't it something like 10-20GB an hour that exchange can restore?
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RE: Exchange Recovery Times - 7.May2012 4:15:26 PM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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Restore time is going to be dependent upon your hardware. If you're using removeable media, that's usually the bottleneck. Unless of course you're restoring over a WAN link, or you have slow drives.
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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RE: Exchange Recovery Times - 8.May2012 9:39:27 AM
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Gigabitz
Posts: 85
Joined: 27.May2008
Status: offline
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7 Physical Nodes 6 Virtual nodes
Fiber Channel Drives with 4GB WAN (One Location)
4.84TB Exchange Data (EDB & STM) combined with no Archive System, and no deletion of mail allowed.....
SERVER:
Storage Group EXCHANGE DB STREAMING DB
SG1 PF EBD 6.4GB STM 1.4GB
SG1 DB4 EDB 77.3GB STM 3.8GB
SG2 DB2 EDB 92.9GB STM 21.6GB
SG2 DB3 EDB 93.4GB STM 20.4GB
SG2 DB4 EDB 36.9GB STM 1.02GB
SG01 DB2 EDB 79.9GB STM 5.61GB
SG01 DB3 EDB 91.2GB STM 2.73GB
SG01 DB4 EDB 57.3GB STM 1.17GB
SG02 DB2 EDB 47.1GB STM 1.54GB
SG02 DB3 EDB 42.1GB STM 840MB
SG02 DB4 EDB 13.5GB STM 260MB
TOTAL 638GB TOTAL 60.37GB
SERVER:
Storage Group EXCHANGE DB STREAMING DB
SG1 DB1 EDB 7.35GB STM 578MB
SG1 DB2 EDB 89GB STM 5.23GB
SG1 DB3 EDB 80GB STM 10.1GB
SG1 DB4 EDB 88.1GB STM 10.1GB
SG2 DB1 EDB 72MB STM 2MB
SG2 DB2 EDB 93.6GB STM 27.6GB
SG2 DB3 EDB 74.9GB STM 18.3GB
SG2 DB4 EDB 84.5GB STM 7.64GB
SG1 PF EDB 6.76GB STM 776MB
SG01DB1 EDB 107GB STM 4.21GB
SG01DB2 EDB 41.8GB STM 1.09GB
SG01DB3 EDB 14.5GB STM 352MB
SG01DB4 EDB 20.4GB STM 138MB
SG01DB1 EDB 81.6GB STM 2.69GB
SG01DB2 EDB 42.6GB STM 1.06GB
SG01DB3 EDB 20GB STM 390MB
SG01DB4 EDB 7.89GB STM 209MB
TOTAL 861GB TOTAL 92GB
SERVER:
Storage Group EXCHANGE DB STREAMING DB
SG1 DB1 EDB 108GB STM 12GB
SG1 DB2 EDB 72.3GB STM 3.27GB
SG1 DB3 EDB 84.5GB STM 7.8GB
SG1 DB4 EDB 74GB STM 2.47GB
SG2 DB2 EDB 98.7GB STM 25.3GB
SG2 DB3 EDB 144GB STM 22.8GB
SG01 DB1 EDB 108GB STM 3.23GB
SG01 DB2 EDB 41.9GB STM 1.63GB
SG01 DB3 EDB 16.5GB STM 408MB
SG01 DB4 EDB 12.3GB STM 144MB
SGO2 DB1 EDB 92.8GB STM 144MB
SG02 DB2 EDB 37.9GB STM 1.72GB
SG02 DB3 EDB 21.2GB STM 428MB
TOTAL 912.1GB TOTAL 81.8GB
SERVER:
Storage Group EXCHANGE DB STREAMING DB
SG1 DB1 EDB 93.1GB STM 22.2GB
SG1 DB2 EDB 112GB STM 14GB
SG1 DB3 EDB 45MB STM 2MB
SG1 DB4 EDB 91.3GB STM 6.24GB
SG2 DB1 EDB 69.7GB STM 684MB
SG2 DB2 EDB 98.4GB STM 7.56GB
SG2 DB3 EDB 70.9GB STM 15.9GB
SG2 DB4 EDB 74.3GB STM 6.56GB
SG01 DB1 EDB 10.7GB STM 174MB
SG01 DB2 EDB 41.2GB STM 1.01GB
SG01 DB3 EDB 51.5GB STM 964MB
SG01 DB4 EDB 59.6GB STM 1.76GB
SG02 DB1 EDB 58.8GB STM 854MB
SG02 DB2 EDB 49.2GB STM 914MB
SG02 DB3 EDB 17.4GB STM 530MB
SG02 DB4 EDB 10.6GB STM 420MB
TOTAL 909.1GB TOTAL 80.22GB
SERVER:
Storage Group EXCHANGE DB STREAMING DB
SG1 PUB EDB 45MB STM 28MB
SG1 DB2 EDB 72.8GB STM 8.88GB
SG1 DB3 EDB 158GB STM 16.1GB
SG1 DB4 EDB 49.5GB STM 3.95GB
SG2 DB2 EDB 106GB STM 9.53GB
SG2 DB3 EDB 169GB STM 14.7GB
SG01 DB1 EDB 93.5GB STM 3.34GB
SG01 DB2 EDB 27.5GB STM 958MB
SG01 DB3 EDB 10.7GB STM 582MB
SG01 DB4 EDB 8.88GB STM 494MB
SG02 DB1 EDB 83.1GB STM 1.48GB
SG02 DB2 EDB 16.8GB STM 234MB
SG02 DB3 EDB 22.8GB STM 778MB
SG02 DB4 EDB 7.63GB STM 112MB
TOTAL 827GB TOTAL 62GB
SERVER:
Storage Group EXCHANGE DB STREAMING DB
SG1 PUB EDB 614MB STM 144MB
SG1 DB1 EDB 77.5GB STM 9.28GB
SG1 DB2 EDB 52.7GB STM 7.86GB
SG1 DB3 EDB 51.7GB STM 14.1GB
SG1 DB4 EDB 63.5GB STM 5.17GB
SG2 DB3 EDB 49.4GB STM 6.96GB
SG2 DB4 EDB 91.2GB STM 5.36GB
SG01 DB1 EDB 74.6GB STM 2.91GB
SG01 DB2 EDB 30.7GB STM .9 GB
SG01 DB3 EDB 51.1GB STM 1.93GB
SG01 DB4 EDB 12GB STM 836MB
SG02 DB1 EDB 70.8GB STM 3.63GB
SG02 DB2 EDB 50.6GB STM 3.29GB
SG02 DB3 EDB 7.60GB STM 170MB
SG02 DB4 EDB 9.40GB STM 374MB
TOTAL 693GB TOTAL 63.5GB
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RE: Exchange Recovery Times - 8.May2012 9:50:21 AM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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How much of that do you have to restore, and what type of backup storage medium is deployed? A 4GB FC backbone will certainly not be the limiting factor - it's likely going to be the backup medium.
How big of a disaster is this? Do users have any access to the stores now?
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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RE: Exchange Recovery Times - 8.May2012 10:21:51 AM
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Gigabitz
Posts: 85
Joined: 27.May2008
Status: offline
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Not sure and as you can imagine I am in constant meetings there is about 1.2TB unavailable, strange thing is Exchange from all I can tell is fine. I am pointing my finger at the storage guy as there was an EVA in place and now they upgraded to an IBM XIV. I had specked out new storage group structure to move user to sporadically and balanced.....I have thrown up a few RSG's for the affected users to at least get working but of course no access to old emails....sucks but oh well
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RE: Exchange Recovery Times - 8.May2012 12:45:59 PM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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Sorry to be poking at your wounds...
Is the EVA now out of the environment (is it possible to point back to the old storage)?
What verification was done after the data migration, and how long after cutover did problems arise?
When you say unavailable, are you saying that Windows can see the data but Exchange doesn't, or that Exchange can't connect to the database files?
What state is the backed up data in? Are you planning to restore raw data files and mount, or are you going to restore the database files into RSGs?
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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RE: Exchange Recovery Times - 9.May2012 10:09:45 AM
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Gigabitz
Posts: 85
Joined: 27.May2008
Status: offline
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Disaster in my mind was a slight ripple as the storage "expert" did something to disrupt the zoning of the EVA and XIV which stopped Exchange from seeing the storage all this he did during production and he still has a job....AMAZING!!!
But as usual Exchange was blamed for everything.
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RE: Exchange Recovery Times - 9.May2012 10:27:52 AM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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It's the old addage of blaming the thing least understood - you certainly have my sympathy.
At this point do you have the answers to your questions?
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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