Solved

Slow disk throughput

Posted on 2013-01-12
3
423 Views
Last Modified: 2013-01-12
All,

I have an HP ML150 G5 and I have set up a mirrored 1.5 tb drive array. I have been having trouble with Linux throwing the drive into read only mode when it is under aload (oracle backup). I think the issue has to do with slow performance on the drive. I ran dd to benchmark write performance and got this:

writing 10MB: 69MB/s
writing 100MB: 20MB/s
writing 1000MB: 12MB/s

My question is, is this normal for a Seagate Barracudda 7200.11 drive? And, is there anything I can to to tune this array? I am not a Linux guru. Just trying to feel my way through this. Thanks.
0
Comment
Question by:LinuxAtWork
  • 2
3 Comments
 
LVL 88

Expert Comment

by:rindi
ID: 38770305
Those disks are desktop drives, not enterprise grade drives. NEVER use desktop grade drives in a RAID array. You'll only have problems.

Replace them with enterprise class drives and your issues should disappear. Probably best is to get drives certified for your server directly from HP.
0
 

Author Comment

by:LinuxAtWork
ID: 38770316
How do I know a given drive is "enterprise"? Is there something specific I should look for in a make/model/or spec?
0
 
LVL 88

Accepted Solution

by:
rindi earned 250 total points
ID: 38770331
The disk manufacturer's web-site usuallysplits them up into sections. Like desktop grade, enterprise grade etc.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Requirements: root access via SSH, telnet, or other.. Alternately, access from the server administrator to run a counter-strike server, and the proper access rights to do so. Enough free disk space (and allowed to use this much, eg disk quota): 6…
More or less everybody in the IT market understands the basics of Networking, however when we start talking about Storage Networks, things get a bit dizzier, and this is where I would like to help.
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question