Question

Performance and check raid status

Asked by: wildzero

Hi there,

Just noticed the performance on our file server is quite sluggish, I also notice the hdd light on the case is just solid. I checked top and all looked fine where, but im not sure where else to look.

This happens right after the machine has rebooted and dosn't have much file sharing activity happening on it.
Not sure where to look, if I could check the raid status as well would be handy - the raid was done at the start of the install (Linux software raid).

Suggestions?
Fedora 6 - just done a full update (using yum)

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2007-05-13 at 19:58:35ID22569684
Tags

raid

,

check

,

status

Topic

Fedora Linux

Participating Experts
1
Points
250
Comments
4

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. To RAID or not to RAID
    I'm building a new system and i really want to have some raw power and i have seen the new Western Digital Raptor 10k drive (SATA) . I find it appealing although the storage capacity is only 36Gb. I intend to do a lot of heavy gaming as well as store just general media. My qu...
  2. Promise SX4000 RAID driver for Fedora
    Has anyone built a Promise SX4000 RAID driver for Fedora and where can I download it?
  3. RAID
    can i connect Raid On runnig syatem .i have soyo with highpoing raid, I am Running now XP PRO in Ide1 , I have just bought two hard drive , both are same model (segate 120 GIG )
  4. Fedora 6 and RAID
    I want to install FC6 with a RAID-1 for total redundancy. I have recently installed Windows XP on an Intel motherboard with 'Embedded RAID'. If I understand correctly this is actually software RAID but in Windows I see just the one logical drive which (hopefully) is mirrored ...
  5. Is there such a thing as a RAID status viewer
    Server 2003 - RAID Status Viewer We have RAID 5 and I just want to check that alk is well with it - is there some kind of ultility that lets you view the status of it? Thanks.

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: ygouthamPosted on 2007-05-13 at 22:21:54ID: 19083048

take a look at
top

this will tell you which process is consuming max CPU or memory.

cat /proc/mdstat

gives you the current status of raid.

Also can be useful if you can let us know what raid level and how much of disk space per raid partition and other info related

 

by: wildzeroPosted on 2007-05-13 at 22:31:55ID: 19083071

I running raid in mirror'd mode - here is the output of proc

Personalities : [raid1] [raid6] [raid5] [raid4]
md0 : active raid1 hdb1[1] hda1[0]
      104320 blocks [2/2] [UU]

md1 : active raid1 hdb3[1] hda3[0]
      388507840 blocks [2/2] [UU]

unused devices: <none>


here is the output of df -hs
Filesystem            Size  Used Avail Use% Mounted on
/dev/md1              359G   69G  272G  21% /
/dev/md0               99M   15M   80M  16% /boot
tmpfs                 247M     0  247M   0% /dev/shm

and as before, top looked fine...

top - 17:31:31 up  4:57,  1 user,  load average: 0.04, 0.05, 0.03
Tasks:  85 total,   2 running,  83 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:    505600k total,   499868k used,     5732k free,    43728k buffers
Swap:  4192944k total,        0k used,  4192944k free,   284964k cached

 

by: ygouthamPosted on 2007-05-14 at 00:27:02ID: 19083421

can you post

dmesg | grep md

it seems to be doing a resync whenever you restart and with a partition that is as big as 350+ Gigs it should take some time

 

by: wildzeroPosted on 2007-05-14 at 13:27:10ID: 19088195

[root@localhost ~]# dmesg | grep md
Kernel command line: ro root=/dev/md1 rhgb quiet
md: raid1 personality registered for level 1
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
md: Autodetecting RAID arrays.
md: autorun ...
md: considering hdb3 ...
md:  adding hdb3 ...
md: hdb1 has different UUID to hdb3
md:  adding hda3 ...
md: hda1 has different UUID to hdb3
md: created md1
md: bind<hda3>
md: bind<hdb3>
md: running: <hdb3><hda3>
raid1: raid set md1 active with 2 out of 2 mirrors
md: considering hdb1 ...
md:  adding hdb1 ...
md:  adding hda1 ...
md: created md0
md: bind<hda1>
md: bind<hdb1>
md: running: <hdb1><hda1>
raid1: raid set md0 active with 2 out of 2 mirrors
md: ... autorun DONE.
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
EXT3 FS on md1, internal journal
EXT3 FS on md0, internal journal
[root@localhost ~]#

There you go.
Also, the machine has been up for 20 hours now, hdd light still going stong... hmm

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...