Guest George Valkov Posted September 24, 2007 Posted September 24, 2007 I understand that running defrag.exe utility on two partitions which are on one and same physical hard-disk is a bad idea. What about defragmenting two partitions from two physical hard-disks in parallel. I think that this will require less time to complete the batch job. 1. Am I correct? 2. Can I workaround that restriction and run two instances of defrag.exe at the same time? I always do this with chkdsk.exe: A script "chk2.bat", when executed it spawns an instance of it self for each physical disk. Each instance checks the partitions of it's disks one by one and notifies the main instance when complete. When all spawned instances complete, the main instance restarts the server, to check the remaining locked partitions (system and page file). I want to do something like that, but with defrag.exe. Thank You for any help! George Valkov
Guest Mathieu CHATEAU Posted September 24, 2007 Posted September 24, 2007 Re: defragmenter is already running Hello, you can't run two defrag with the builtin windows program. You may use third party software to achieve this. How to Defragment Your Disk Drive Volumes in Windows XP http://support.microsoft.com/kb/314848/en-us .. It can defragment only local volumes. .. It can defragment only one volume at a time. .. It cannot defragment one volume while it is scanning another. Take care that you may loss Shadow copy when defragmenting volumes: Shadow copies may be lost when you defragment a volume http://support.microsoft.com/kb/312067/en-us -- Cordialement, Mathieu CHATEAU http://lordoftheping.blogspot.com "George Valkov" <a@b.com> wrote in message news:eucwJlp$HHA.5404@TK2MSFTNGP02.phx.gbl... >I understand that running defrag.exe utility on two partitions which are on > one and same physical hard-disk is a bad idea. > > What about defragmenting two partitions from two physical hard-disks in > parallel. I think that this will require less time to complete the batch > job. > 1. Am I correct? > 2. Can I workaround that restriction and run two instances of defrag.exe > at > the same time? > > > I always do this with chkdsk.exe: > A script "chk2.bat", when executed it spawns an instance of it self for > each > physical disk. Each instance checks the partitions of it's disks one by > one > and notifies the main instance when complete. When all spawned instances > complete, the main instance restarts the server, to check the remaining > locked partitions (system and page file). > > I want to do something like that, but with defrag.exe. > > > Thank You for any help! > > > George Valkov > >
Guest George Valkov Posted September 25, 2007 Posted September 25, 2007 Re: defragmenter is already running Thank You for your answer, Mathieu! I shall try Diskeeper trial in a test environment, to see what features it has, but I will probably not move to it. The two hard-disks on my server are large and have many files, but are also fast enough, so the defragmentation takes quite a little time. The good arrangement of "dedicated for specific task" partitions and the large cluster size of 64 KB also speeds the defragmentation and reduces the fragmentation during disk usage. George Valkov "Mathieu CHATEAU" wrote in message:: | Hello, | | you can't run two defrag with the builtin windows program. You may use third | party software to achieve this. | How to Defragment Your Disk Drive Volumes in Windows XP | http://support.microsoft.com/kb/314848/en-us | . It can defragment only local volumes. | . It can defragment only one volume at a time. | . It cannot defragment one volume while it is scanning another. | | | Take care that you may loss Shadow copy when defragmenting volumes: | | Shadow copies may be lost when you defragment a volume | http://support.microsoft.com/kb/312067/en-us | | | | -- | Cordialement, | Mathieu CHATEAU | http://lordoftheping.blogspot.com | | | "George Valkov" <a@b.com> wrote in message | news:eucwJlp$HHA.5404@TK2MSFTNGP02.phx.gbl... | >I understand that running defrag.exe utility on two partitions which are on | > one and same physical hard-disk is a bad idea. | > | > What about defragmenting two partitions from two physical hard-disks in | > parallel. I think that this will require less time to complete the batch | > job. | > 1. Am I correct? | > 2. Can I workaround that restriction and run two instances of defrag.exe | > at | > the same time? | > | > | > I always do this with chkdsk.exe: | > A script "chk2.bat", when executed it spawns an instance of it self for | > each | > physical disk. Each instance checks the partitions of it's disks one by | > one | > and notifies the main instance when complete. When all spawned instances | > complete, the main instance restarts the server, to check the remaining | > locked partitions (system and page file). | > | > I want to do something like that, but with defrag.exe. | > | > | > Thank You for any help! | > | > | > George Valkov | > | > |
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