jafar54
asked on
Not enough space to Defrag both edb and stm files together
Hi there
We have landed in a situation where by we dont have enough diskspace to defrag the .edb and .stm files at the same time. Are you able to defrag just the .edb? I see that if you run eseutil with a /i switch, then it doesn's use the stm file..... what is the consequence of that? is it recommended??
Also, how does one calculate the time required? We have a 59gb edb file with a 1ogb stm file.... is there any rule of thumb as to the time period it would take to do an offline defrag??
We have landed in a situation where by we dont have enough diskspace to defrag the .edb and .stm files at the same time. Are you able to defrag just the .edb? I see that if you run eseutil with a /i switch, then it doesn's use the stm file..... what is the consequence of that? is it recommended??
Also, how does one calculate the time required? We have a 59gb edb file with a 1ogb stm file.... is there any rule of thumb as to the time period it would take to do an offline defrag??
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Offline defrag can go quicker, but until you have done it once, you will not know. Each site is different and it is very dependant on the speed of the hardware.
As for GoExchange, that is just a fancy wrapper for offline defrags. Remember that offline defrag is a process which Microsoft do not recommend should be carried out as a regular maintenance anyway.
Simon.
As for GoExchange, that is just a fancy wrapper for offline defrags. Remember that offline defrag is a process which Microsoft do not recommend should be carried out as a regular maintenance anyway.
Simon.
ASKER
Thanks guys for the info.
We have checked the Event ID 1221, and found that on one of the servers, it has been noted that both storage groups will benefit by the offline defrag. The second server doesnt have much space available.
What I have suggest however, is that since the servers use SAN space, to allocate an extra drive, make a copy of one of the storage groups onto the new drive..... then run a ESEUTIL /d against the database to get a benchmark on the time requirements as well as the server overheads.
Will let you know what happens.
We have checked the Event ID 1221, and found that on one of the servers, it has been noted that both storage groups will benefit by the offline defrag. The second server doesnt have much space available.
What I have suggest however, is that since the servers use SAN space, to allocate an extra drive, make a copy of one of the storage groups onto the new drive..... then run a ESEUTIL /d against the database to get a benchmark on the time requirements as well as the server overheads.
Will let you know what happens.
You don't have to defrag on the system with Exchange installed, just one with the ESEUTIL copied to it.
Use the fastest pair of RAID10 arrays you have with 2.5 times the size of the store in space.
configure defrag settings to create new file on seperate array from original file.
On completion copy this new file back to your production Exchange server.
With this scenario I have seen 48GB store offline defrag complete in one hour and 64GB in less than two.
Do you have online defrag running? On what schedule?
This will help keep whitespace optimal.
If you haven't got the hardware resource or downtime windows for offline defrag,
consider an Exchange optimising tool, such as GoExchange for Essential.
HTH
DT