3
votes
1answer
45 views

Optimal RAID10 configuration for 8 disks and two volumes?

I have an Open-E file server with 8 SAS disks and a MegaRAID 9271-8i controller and I want to configure two logical RAID10 volumes of identical size. One volume has about 66% write access and 33% read ...
2
votes
4answers
859 views

LSI RAID: Write cache policy affects read performance?

I have a server with a LSI MegaRAID SAS 9260-4i controller, RAID-5 with 3 x 2 TB disks. I did some performance testing (with iozone3) and the numbers show clearly that the write cache policy affects ...
2
votes
2answers
276 views

Strange performance issue with Dell R7610 and LSI 2208 RAID controller

Connecting controller to any of the three PCIe x16 slots yield choppy read performance around 750 MB/sec Lowly PCIe x4 slot yields steady 1.2 GB/sec read Given same files, same Windows Server 2008 ...
3
votes
4answers
1k views

Very poor SCSI hd performance on IBM x336 with LSI 1030 RAID1

I'm experiencing very poor performance on an IBM x336 server with dual 73GB 15k hard drives on a U320 controller, LSI 1030. We're getting maybe 3.5MB/sec max (per HD Tune utility). It should be over ...
0
votes
2answers
5k views

Very Slow Virtual Disk I/O, LSI_SCSI Warning on P2V W2K3 64-Bit VMWare Guest

I did a P2V conversion of a production server (W2K3R2 64-bit) a while back using the VMWare conversion tool. I then installed the free VMWare Server 2.0 product on a Windows server, and am able to ...
3
votes
4answers
2k views

Severe write performance problem

[Sorry, I tried to stay short but it just was not possible] I'm running Linux 2.6.22.19 with linux-vserver 2.3.0.34 on a Fujitsu Siemens Primergy RX200 S3 for development purpose. Intel(R) Xeon(R) ...