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Oh wow, I tested some settings and got nice results now:
Same 4 tests as before:
IOs/sec: 26603.17 IOs/sec: 128635.63 IOs/sec: 12689.54 IOs/sec: 31672.66
MBs/sec: 207.83 MBs/sec: 1004.96 MBs/sec: 793.09 MBs/sec: 1979.54
seems like fixed :)
New settings on Windows / Raid10 VD...
Here are some benchmark results:
I've tested like this:
- every test runs for 120 seconds
- 8 threads with up to 8 outstanding requests at once
1. test: random writes, 8kb
sas spinning disks:
IOs/sec: 1970.98
MBs/sec: 15.39
ssd raid10:
IOs/sec: 7880.00
MBs/sec: 61.56
2. test...
heys guys
so i bought the stuff: lsi 9271-8i, cache vault and updated latest fw.
i took the 4 Samsung 840 Pro and built a raid 10
but i get really slow performance. when restoring a sql database, it writes with 50-60mb/s. our SAS spinning drives are much faster.
i've created a VD with these...
thx dude! so ill buy cache vault, lsi raid and bracket and will create raid10 with my ssds! do you create separate VDs for tempdb, data and log files? or do you keep them all on the same VD?
thx for the answers!
problem: the server is already productive (clustered, at least) so I need to buy a new RAID controller (with BBU/Cache Vault of course..). I can't change to ESXI and install a new OS or storage system. It is a physical server with Windows Server 2008 R2 installed.
So I...
Dear all
I've bought 4 Samsung 840 PRO SSDs and installed them on a 2011 SuperMicro Mainboard with LSI 2008 RAID Controller. RAID5 Read-Performance is great, but writes are weak (My guess is the lacking write-back feature)
Now I need to buy a new RAID Controller and I am asking myself...
hey hagrid, thx for your input. i checked the mainboard and found this:
http://hardforum.com/showthread.php?t=1765122
But I also found the wiki entry that it supports IOMMU, so ill give it a shot.
Dear all
I'm currently using the following hardware in my ESXI 5.1 host:
Asus m4a89gtd pro/usb3
16 GB Ram
LSI RAID Controller
2 x PCI-E x4 Dual NICs
AMD Phenom II X4 965
Although some say that IOMMU should be supported by my board, it doesnt.. I'm not having IOMMU option in bios and...