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RAID 10 Write policy enable or disable in R710 for Exchange server

I have Dell Poweredge R710 with 5x 600GB 15k SAS HDDs with 32GB ram for 150 users.
I am going to configure RAID 10 + 1 HS for dedicated Exchange server.
Should I enable Write Back (default enabled) or keep it disabled as best practice?
1 Solution
Seth SimmonsSr. Systems AdministratorCommented:
there is a performance increase with write-back so i would leave it enabled; especially with exchange

all the 710's i've purchased have been with 1gb cache and has worked well
teomcamAuthor Commented:
I am aware of the performance increase but in case of power failure, hardware failure blue screen seems we are running into some serious problems and data loss. I have several PE 2950 servers write back enabled and did not have any problem but this time I'd like more make sure for this dedicated exchange server.
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