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1
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1answer
218 views

Need to stop SQL Server when using Disk Defragmenter?

Our provider told me today that I should stop Microsoft SQL Server and other database systems like MySQL when using the Windows Disk Defragmenter. Otherwise, the database might get corrupted. Since ...
2
votes
1answer
490 views

Defrag running Daily at 2pm. No idea why

Our file server has always had a performance blip at 2pm every day. Nothing major but annoying. Finally tracked down the cause, or potential cause, being a defrag running at 2pm every day. Event ID ...
0
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0answers
508 views

Does the Windows Server 2012 Data Deduplication feature work with 3rd party defrag programs?

Does the Windows Server 2012 Data Deduplication feature work with 3rd party defrag programs, in particular Auslogics Disk Defrag? I recently enabled the Data Deduplication feature on a drive to test ...
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vote
2answers
181 views

Quickbooks Server - insane fragmentation and disk space concerns

So I recently came into a position to manage the server for our small, 12 person, company. The previous sysadmin here had absolutely no clue what he was doing, and has left the following situation. I ...
3
votes
1answer
894 views

Should you defrag before capturing an image?

If I'm capturing an image with imagex.exe /capture ..., does it matter if I defrag the hard disk prior to doing so (or strictly speaking, before sysprep)? Is there any benefit to doing so with a ...
0
votes
2answers
603 views

Why can't I defragment my SQL 2008 .mdf file?

I am defragmenting a badly (95%) fragmented drive upon which large (35 gig) SQL Server 2008 .mdf files live. After defragmenting and viewing the exception report, I see that the production .mdf ...
0
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1answer
109 views

Exchange 2003 Defrag is too slow

I have a Exchange database that has been cleaned out and a lot of space freed up. I would like to defrag the database using eseutil, but it is taking too long. I've tried moving the files to my ...
1
vote
1answer
180 views

Exchange defragment

A few days ago, we did an offline defrag on our exchange database. We have to make it to a new partition. The command was: "C:\Program Files\Exchsrvr\bin\eseutil.exe" /d /p /i "E:\Program ...
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votes
3answers
3k views

Is Windows Disk Defragmenter good enough?

I know this can be sound a little like an open question, but I want your thoughts here. Maybe if someone have make a benchmark test or based on your experience. Do you think that Windows Defragmenter ...
1
vote
3answers
90 views

what's a reliable and fast defrag for Win2k8/IIS7 server?

We inherited several Win2k8/II7 that host about 40 websites each. The drives are nearly full at all times, and while we're working on moving a lot of files to the Amazon S3, files are constantly ...
0
votes
1answer
407 views

Do I have space to defrag a machine hosted on VMWare ESXi 4.1?

I have inherited what I think is a badly configured VMWare ESXi 4.1 system, I know very little about VMWare. It currently hosts 2 systems. They are both on the same datastore, which is on RAID 5. ...
0
votes
3answers
205 views

Resize a new database to predicted maximum size

Currently I have a SQL Server database which is about 2 Gb. I know over the next year it's going to grow to a maximum of about 10Gb. Hard drive space is not an issue in the slightest. Is there a ...
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2answers
82 views

Defragment a FILESTREAM data container

Has anyone ever tried to defrag a FILESTREAM data container using the Windows Disk Defragmenter? Does this work without taking the FILESTREAM enabled database offline? If this doesn't work, can ...
3
votes
4answers
356 views

Is defragmentation of VHDs necessary?

I've got about 60 servers that were migrated from physical machines running on ESX 4. I'm having issues with the Diskeeper software installed, and I'm trying to decide if I should try to fix the ...
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vote
1answer
1k views

Does the Windows Server 2008 disk defragmenter work with open files?

I have a server running a number of Hyper-V guest instances. One recommendation to improve the performance of our guest OSes is to defragment the vhd files. Can I do this while the guest is still ...
1
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1answer
3k views

How do I move the physical location of $MFTMirr, to allow resizing the partition?

When an NTFS volume is created, the first four entries of the MFT are copied and placed halfway the volume in the $MFTMirr file. According to Microsoft, since XP these files (metadata files) can be ...
2
votes
1answer
3k views

Resizing volume with DiskPart unsuccessful, while there's enough free space

I have a physical disk with two partitions, an old OS partition (with MBR) of 296GB and a RECOVERY partition of 2048MB (a default DELL recovery partition), both are not in use. I have successfully ...
1
vote
1answer
626 views

Defrag starting when not scheduled. What is triggering the defrag

I have a fileserver that is starting a defrag around 2:00 PM everyday. This is killing performance as it runs for ours becuase this is a file server and has multiple drives. All scheduled tasks ...
5
votes
4answers
3k views

Does Windows Defrag utility reports fragmentation correctly on a RAID system?

We have a server with a RAID volume. Windows DEFRAG shows very high fragmentation (90%) on the volume. My chief asked if DEFRAG reported fragmentation is correct (or near correct) or not. We don't ...
3
votes
4answers
3k views

Windows 2008 Microsoft Disk Defragmenter

Is the Disk Defrag utility built into Windows 2008 and Windows 2008 R2 good enough? I see lots of 3rd party defragmentation tools out there but I'm wondering if they were meant for Windows 2003 and ...
0
votes
1answer
427 views

windows server 2003 consolidate free space

I would like to move all the data on a drive in Windows Server 2003 to the beginning of the drive (a virtual hard drive) so that I can more fully compact the .vhd file. However, the Windows server ...
1
vote
2answers
1k views

What is the significance of “Percent MFT in use”?

Reading through a Disk Defragmenter analysis report I noticed that my NTFS Master File Table was 6.87GB in size, but only 4% of it was reported as in use. Is this something that could cause NTFS ...
1
vote
1answer
551 views

Benefit of Defragging SQL Server Data files located on a SAN

In the past, I have used contig.exe to remove physical fragmentation from SQL Server data files. They have always been on locally attached storage. Is there any benefit to running this on a data file ...
2
votes
5answers
4k views

Does defragmenting your hard drive before resizing the partition have any benefits?

Whenever I install Linux on a box that has Windows, and I want to dual boot, I always defragment the hard drive as much as possible before resizing the partition. Is this just superstition, or is it ...
0
votes
1answer
1k views

Dealing with fragmented VM shared storage

We have a Citrix XenServer pool with 3 hosts, using a shared NFS Storage Repository for our VMs. The SR is hosted on a Windows 2003 Storage Server blade, that was included with our 3000 series HP ...
3
votes
4answers
5k views

Does restoring a SQL database from backup rebuild its indexes?

Does restoring a SQL database from backup rebuild its tables and indexes from scratch? Or does it keep it in the same internal physical order it was in at the time of backup? We're using SQL 2000 ...
2
votes
9answers
523 views

Is it worthwhile to defrag workstation computers?

Our [Windows] workstations mostly just run MS Office and our CRM and ERP clients. All real data is stored on the servers. Is there any point to defragging these machines? If so, how often?
1
vote
1answer
2k views

Defrag a drive encrypted with Whole Drive Encryption

I am running Windows Vista where the entire system drive has been encrypted using Truecrypt 6.2 Whole Drive Encryption (WDE). I was wondering whether defragging a drive which is encrypted with WDE ...
4
votes
4answers
4k views

VM Virtual guest machine disk defrag improves performance, myth or reality?

In operation of a virtual Vmware or Hyper-V guest typically advice is given to defrag the host and virtual disk images so to result in improved performance. Something like a cmd: vmware-vdiskmanager ...
8
votes
9answers
614 views

Defragmenters useful for *nix?

Having come from a windows enviroment, I was curious if defragmenters are useful in *nix. More specifically, OS X.
11
votes
9answers
35k views

How much space should you leave free on a hard disk?

Is there a rule of thumb for how much space to leave free on a hard disk? I used to hear you should leave at least 5% free to avoid fragmentation. [I know the answer depends on usage (eg: video files ...
9
votes
1answer
897 views

How can I tell when it is time to defrag my SQLServer database?

What is the best practice for measuring SQLServer database fragmentation/performance rolloff and determining when to defrag a SQLServer database table? I'm most interested in learning what the useful ...
3
votes
3answers
3k views

Is it bad to defrag a minimally fragmented drive?

Someone told me that it is not always a good idea to defragment a minimally fragmented drive (<2%); and that it could cause performance issues. Are they right, and why/why not?
23
votes
7answers
3k views

Do I need to defrag unix filesystems?

I know Windows file systems are very sensitive to fragmentation and Unix such as UFS, ZFS, ext3, or ext4 are not as sensitive. But, is there any reason to defragment these filesystems at all? If so, ...
21
votes
3answers
9k views

Should I defrag my RAID volumes?

It seems to me that since RAID volumes are logical (as opposed to physical), the layout that the OS believes they have might not correspond to the actual phsyical layout. So does defrag make sense ...