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BrennanB
Contributor
Contributor

SDHC and 7200 RPM drives

Am ordering a HP Proliant DL360 G7 w/ the 4GB SDHC to run ESXi 4 off of and was going to add 4 x 500GB 7200rpm SATA drives for a small testing environment for Xp, Vista and Windows 7. USers will be testing desktop apps and some single SQL databases on these VM's

Has anyone else gone with local 7200 RPM drives with acceptable performance?

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raybb
Contributor
Contributor

We had a DL380G5 with 7x500GB SATA SFF (2.5") and P400 controller as testing platform.

The performances was substantially lower then SAS, we had a hdparm write ("hdparm /Tt /dev/sda" in linux vm) value around 60 compared to 160 in the same machine with SAS disks. Performance are acceptable if you don't go in production environment with many vm.

The best thing you can do with HP G6/G7 platform is to raise the cache of P410 to 1GB or at least 512 MB (BBWC is mandatory).

I hope this helps.

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J1mbo
Virtuoso
Virtuoso

It really depends whether the IOPS needs will be met.

I use RAID-10 configurations with 4x SATA and 6x SATA drives for storage of for example archive file servers, ad-hoc virtual desktops, development Oracle DBs even, which all work fine.  4x SATA drives will do about 600 IOPS in RAID-10 with caching controller and NCQ.  SAS drives might be double that maybe.

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