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10-13-2008
| #1 (permalink) |
| Guest | Bad disk performance - VS2005 R2 SP1 We are having really bad disk performance on our VS Guest Host DL380 G4 3GB RAM 2 x 36GB Raid 1 for OS 2 x HBA, SAN Attached VRAID5 LUN for Guests. 2 x 1GB NIC, Teamed 2GB Total Currently have 1 Guest. 5 Virtual SCSI Adapters (Shared Bus for Clustering) 5 SCSI attahced Fixed size VHD (Size varies from 60GB to 500GB) All reside on SAN. The disk write time is awful. Disk write time to Host disks is fine Anything else attached to Same SAN has no performance issues at all I really have no idea why or where to start looking. so any ideas would be great. |
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10-14-2008
| #2 (permalink) |
| Guest | Re: Bad disk performance - VS2005 R2 SP1 Did this behavior just appear or has it always been this result? -- Ryan Sokolowski MVP - Clustering MCT, MCITP x3, MCTS x7, MCSE x2, CCNA, CCDA, BCFP "Chris" <chris@xxxxxx> wrote in message news:%23dN4GBXLJHA.6128@xxxxxx Quote: > We are having really bad disk performance on our VS Guest > > Host DL380 G4 3GB RAM > 2 x 36GB Raid 1 for OS > 2 x HBA, SAN Attached VRAID5 LUN for Guests. > 2 x 1GB NIC, Teamed 2GB Total > > Currently have 1 Guest. 5 Virtual SCSI Adapters (Shared Bus for > Clustering) > 5 SCSI attahced Fixed size VHD (Size varies from 60GB to 500GB) All reside > on SAN. > > The disk write time is awful. Disk write time to Host disks is fine > > Anything else attached to Same SAN has no performance issues at all > > I really have no idea why or where to start looking. so any ideas would be > great. > |
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10-16-2008
| #3 (permalink) |
| Guest | Re: Bad disk performance - VS2005 R2 SP1 really strange as i created a replica and it works fine. this weekend i plan to recreate it and see how i go. "Ryan Sokolowski [MVP]" <ryan@xxxxxx> wrote in message news:F5B5DF9E-32B3-4356-B2D4-584A02C97B76@xxxxxx Quote: > Did this behavior just appear or has it always been this result? > > -- > Ryan Sokolowski > MVP - Clustering > MCT, MCITP x3, MCTS x7, MCSE x2, CCNA, CCDA, BCFP > > > "Chris" <chris@xxxxxx> wrote in message > news:%23dN4GBXLJHA.6128@xxxxxx Quote: >> We are having really bad disk performance on our VS Guest >> >> Host DL380 G4 3GB RAM >> 2 x 36GB Raid 1 for OS >> 2 x HBA, SAN Attached VRAID5 LUN for Guests. >> 2 x 1GB NIC, Teamed 2GB Total >> >> Currently have 1 Guest. 5 Virtual SCSI Adapters (Shared Bus for >> Clustering) >> 5 SCSI attahced Fixed size VHD (Size varies from 60GB to 500GB) All >> reside on SAN. >> >> The disk write time is awful. Disk write time to Host disks is fine >> >> Anything else attached to Same SAN has no performance issues at all >> >> I really have no idea why or where to start looking. so any ideas would >> be great. >> |
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10-16-2008
| #4 (permalink) |
| Guest | Re: Bad disk performance - VS2005 R2 SP1 really strange as i created a replica and it works fine. this weekend i plan to recreate it and see how i go. "Ryan Sokolowski [MVP]" <ryan@xxxxxx> wrote in message news:F5B5DF9E-32B3-4356-B2D4-584A02C97B76@xxxxxx Quote: > Did this behavior just appear or has it always been this result? > > -- > Ryan Sokolowski > MVP - Clustering > MCT, MCITP x3, MCTS x7, MCSE x2, CCNA, CCDA, BCFP > > > "Chris" <chris@xxxxxx> wrote in message > news:%23dN4GBXLJHA.6128@xxxxxx Quote: >> We are having really bad disk performance on our VS Guest >> >> Host DL380 G4 3GB RAM >> 2 x 36GB Raid 1 for OS >> 2 x HBA, SAN Attached VRAID5 LUN for Guests. >> 2 x 1GB NIC, Teamed 2GB Total >> >> Currently have 1 Guest. 5 Virtual SCSI Adapters (Shared Bus for >> Clustering) >> 5 SCSI attahced Fixed size VHD (Size varies from 60GB to 500GB) All >> reside on SAN. >> >> The disk write time is awful. Disk write time to Host disks is fine >> >> Anything else attached to Same SAN has no performance issues at all >> >> I really have no idea why or where to start looking. so any ideas would >> be great. >> |
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10-16-2008
| #5 (permalink) |
| Guest | Re: Bad disk performance - VS2005 R2 SP1 really strange as i created a replica and it works fine. this weekend i plan to recreate it and see how i go. "Ryan Sokolowski [MVP]" <ryan@xxxxxx> wrote in message news:F5B5DF9E-32B3-4356-B2D4-584A02C97B76@xxxxxx Quote: > Did this behavior just appear or has it always been this result? > > -- > Ryan Sokolowski > MVP - Clustering > MCT, MCITP x3, MCTS x7, MCSE x2, CCNA, CCDA, BCFP > > > "Chris" <chris@xxxxxx> wrote in message > news:%23dN4GBXLJHA.6128@xxxxxx Quote: >> We are having really bad disk performance on our VS Guest >> >> Host DL380 G4 3GB RAM >> 2 x 36GB Raid 1 for OS >> 2 x HBA, SAN Attached VRAID5 LUN for Guests. >> 2 x 1GB NIC, Teamed 2GB Total >> >> Currently have 1 Guest. 5 Virtual SCSI Adapters (Shared Bus for >> Clustering) >> 5 SCSI attahced Fixed size VHD (Size varies from 60GB to 500GB) All >> reside on SAN. >> >> The disk write time is awful. Disk write time to Host disks is fine >> >> Anything else attached to Same SAN has no performance issues at all >> >> I really have no idea why or where to start looking. so any ideas would >> be great. >> |
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