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Avg. Disk queue length

microsoft.public.windows.vista.performance maintenance






Speedup My PC
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  #1 (permalink)  
Old 06-30-2008
shazbot
 

Posts: n/a
Avg. Disk queue length

After doing a check on the health and performances of my comp,

the program gives me a red flag for the Avg Disk Queue Lengh with a
average of 2, minimum of 1 and a max of 6

I have Western Digital Caviar RE 320 Gb * 3 raid 5 (so good and fast
disks)

they are only 1/32 full so lots of room, the disk is defragged, all
temps files are binned

As you can see by my comp details I have a good setup, so why do I have
such bad readings ???

any help would be helpful


--
shazbot

EVGA 132-CK-NF780-A1, BIOS 05
Intel X6800@2.93
Video Asus EN8800GTX
Western Digital Caviar RE 320 Gb * 3 raid 5
Western Digital Caviar RE 250 Gb * 1
Hitachi Deskstar 7K1000 1 To * 1
G-Skill F2-8000CL5D-4GBPQ (2GB x 2) now not used
Corsair 2x4096 - 8500C5DF
Monitor SyncMaster 930B(Digital)* 2
Antec Truepower Quattro 850 power supply
Vista Business 64bit
Noctua NH-U12P
Case Cooler Master Cosmos 1000
Azuntech X-Fi Prelude sound card
Steelpad keyboard, Logitech G5 Mouse
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  #2 (permalink)  
Old 07-01-2008
shazbot
 

Posts: n/a
Re: Avg. Disk queue length

after reading up, it seems that if I transfert my raid 5 to a raid 1 or
0 setup it might makes things faster

Anybody ???????


--
shazbot

EVGA 132-CK-NF780-A1, BIOS 05
Intel X6800@2.93
Video Asus EN8800GTX
Western Digital Caviar RE 320 Gb * 3 raid 5
Western Digital Caviar RE 250 Gb * 1
Hitachi Deskstar 7K1000 1 To * 1
G-Skill F2-8000CL5D-4GBPQ (2GB x 2) now not used
Corsair 2x4096 - 8500C5DF
Monitor SyncMaster 930B(Digital)* 2
Antec Truepower Quattro 850 power supply
Vista Business 64bit
Noctua NH-U12P
Case Cooler Master Cosmos 1000
Azuntech X-Fi Prelude sound card
Steelpad keyboard, Logitech G5 Mouse
Reply With Quote
  #3 (permalink)  
Old 07-01-2008
Ken Blake, MVP
 

Posts: n/a
Re: Avg. Disk queue length
On Tue, 1 Jul 2008 07:06:19 -0500, shazbot <guest@unknown-email.com>
wrote:

>
> after reading up, it seems that if I transfert my raid 5 to a raid 1 or
> 0 setup it might makes things faster



That's a very strange question. RAID 0 and RAID 1 are completely
different and used for very different purposes. To think of them as
alternatives is certainly very odd.

RAID 0, in theory, will speed up the computer over no RAID, but in
practice, it usually does so so little as to be unnoticeable.
Considering that it also greatly increases the risk to your data, I
recommend against it.

I don't know anything about the relative speeds of RAID 1 and RAID 5.

RAID 1, as I said, is completely different. It's mirroring, used for
redundancy, not performance.


> EVGA 132-CK-NF780-A1, BIOS 05
> Intel X6800@2.93
> Video Asus EN8800GTX
> Western Digital Caviar RE 320 Gb * 3 raid 5
> Western Digital Caviar RE 250 Gb * 1
> Hitachi Deskstar 7K1000 1 To * 1
> G-Skill F2-8000CL5D-4GBPQ (2GB x 2) now not used
> Corsair 2x4096 - 8500C5DF
> Monitor SyncMaster 930B(Digital)* 2
> Antec Truepower Quattro 850 power supply
> Vista Business 64bit
> Noctua NH-U12P
> Case Cooler Master Cosmos 1000
> Azuntech X-Fi Prelude sound card
> Steelpad keyboard, Logitech G5 Mouse


--
Ken Blake, Microsoft MVP - Windows Desktop Experience
Please Reply to the Newsgroup
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  #4 (permalink)  
Old 07-02-2008
shazbot
 

Posts: n/a
Re: Avg. Disk queue length

Hi

well it was the raid 5 that was the culprit

Raid 5 is far more complex than 0 or 1 and fore on-board cards,
changing my set-up back to raid 0 solved the problem straight away,

I can actually see the difference as just opening HD and windows is far
faster

I think that I shall order a raid car and play around some more,

Raid 5 I'm sure will work better on a Raid card and I will get better
band with thru a card than on the MB, therefore getting even better
transfer rates


--
shazbot

EVGA 132-CK-NF780-A1, BIOS 05
Intel X6800@2.93
Video Asus EN8800GTX
Western Digital Caviar RE 320 Gb * 3 raid 5
Western Digital Caviar RE 250 Gb * 1
Hitachi Deskstar 7K1000 1 To * 1
G-Skill F2-8000CL5D-4GBPQ (2GB x 2) now not used
Corsair 2x4096 - 8500C5DF
Monitor SyncMaster 930B(Digital)* 2
Antec Truepower Quattro 850 power supply
Vista Business 64bit
Noctua NH-U12P
Case Cooler Master Cosmos 1000
Azuntech X-Fi Prelude sound card
Steelpad keyboard, Logitech G5 Mouse
Reply With Quote
  #5 (permalink)  
Old 07-08-2008
Mitra
 

Posts: n/a
Re: Avg. Disk queue length
Ken,

When I do a system health check I get the following information/message
"Average disk queue length is 3. The disk may be at its maximum transfer
capacity due to throughput and disk seeks"

What does this mean and what do iI do about it. I'm not even sure which
disc it is referring to, I have 2 internal drives and 3 external drives.

Thanks for your help.
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  #6 (permalink)  
Old 07-08-2008
shazbot
 

Posts: n/a
Re: Avg. Disk queue length

if I understood all of it correctly it basically means that this is a
traffic jam while reading writing to the hard disc, that why you see
sometimes the little blue ring in vista going around as its thinking

Have you only one HD, or do you have a raid set-up ?, as you didn't
post your sig so we don't know your set-up


--
shazbot

EVGA 132-CK-NF780-A1, BIOS 05
Intel X6800@2.93
Video Asus EN8800GTX
Western Digital Caviar RE 320 Gb * 3 raid 5
Western Digital Caviar RE 250 Gb * 1
Hitachi Deskstar 7K1000 1 To * 1
G-Skill F2-8000CL5D-4GBPQ (2GB x 2) now not used
Corsair 2x4096 - 8500C5DF
Monitor SyncMaster 930B(Digital)* 2
Antec Truepower Quattro 850 power supply
Vista Business 64bit
Noctua NH-U12P
Case Cooler Master Cosmos 1000
Azuntech X-Fi Prelude sound card
Steelpad keyboard, Logitech G5 Mouse
Reply With Quote
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