| Author |
Message |
Min
Guest
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 Posted:
Thu Sep 09, 2004 4:43 am Post subject:
Maximum number of disk. |
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| Does any one know what's the maximum number of disk that windows 2003 support? |
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Pat [MSFT]
Guest
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Pat [MSFT]
Guest
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| Posted:
Thu Sep 09, 2004 10:38 pm Post subject:
Re: Maximum number of disk. |
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Ah.
The limits are described in Q310072. I would recommend reviewing it as it
has some regkeys that may be involved here. Also, this is dependent on the
HBA & Drivers, so you may need to contact your vendor for additional
information.
Basically:
- 8 buses per adapter
- 128 target IDs per bus
- 254 LUNs per target ID
Pat
"Min" <Min@discussions.microsoft.com> wrote in message
news:BE9947A8-99F0-4733-AA0B-8498366C67C5@microsoft.com...
| Quote: | Pat: The link you gave to me only has the maximum volume number and volume
size, not the disk numbers. :(
"Min" wrote:
Yes, they are physical drives, and they are connected to a HBA in the
server.
And they ARE individule drives, no virtual lun created by controller. To
be
more specific:
I've 16 JOBD, each JOBD has 12 disk, and all of them cascaded and then
connect to a Qlogic HBA. and then on the OS (windows 2003), I can only
see 63
disks.
"Pat [MSFT]" wrote:
It depends. Do you mean how many physical drives? How are they being
presented by the HW (i.e. are you using a controller that presents
multiple
drives as a single large image)?
For a general overview of limits, see:
http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/deployguide/en-us/Default.asp?url=/resources/documentation/windowsserv/2003/all/deployguide/en-us/sdccc_fsv_duel.asp
Pat
"Min" <Min@discussions.microsoft.com> wrote in message
news:18AF9679-3DD6-40C4-BD2A-ED938A8C8749@microsoft.com...
Does any one know what's the maximum number of disk that windows 2003
support?
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msnews.microsoft.com
Guest
|
| Posted:
Mon Sep 13, 2004 11:14 pm Post subject:
Re: Maximum number of disk. |
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The 128 TIDs per bus is likely to be your problem. You have 192 targets
attached so I suspect that you are seeing a wraparound effect (192-128 = 64,
minus one for the adapter).
Of course, another bigger "hole" in this is that any FC arbitrated loop can
only support 126 AL_PAs so you have a bunch of disks that are not getting
assigned target IDs (non-participating).
Then there's the whole perf quesiton, but I'll leave that alone...
"Min" <Min@discussions.microsoft.com> wrote in message
news:F9625A4C-8C92-4E4F-AC76-13367C093AA9@microsoft.com...
| Quote: | Thanks a lot Pat, I will give a try.
"Pat [MSFT]" wrote:
Ah.
The limits are described in Q310072. I would recommend reviewing it as
it
has some regkeys that may be involved here. Also, this is dependent on
the
HBA & Drivers, so you may need to contact your vendor for additional
information.
Basically:
- 8 buses per adapter
- 128 target IDs per bus
- 254 LUNs per target ID
Pat
"Min" <Min@discussions.microsoft.com> wrote in message
news:BE9947A8-99F0-4733-AA0B-8498366C67C5@microsoft.com...
Pat: The link you gave to me only has the maximum volume number and
volume
size, not the disk numbers. :(
"Min" wrote:
Yes, they are physical drives, and they are connected to a HBA in the
server.
And they ARE individule drives, no virtual lun created by controller.
To
be
more specific:
I've 16 JOBD, each JOBD has 12 disk, and all of them cascaded and then
connect to a Qlogic HBA. and then on the OS (windows 2003), I can only
see 63
disks.
"Pat [MSFT]" wrote:
It depends. Do you mean how many physical drives? How are they
being
presented by the HW (i.e. are you using a controller that presents
multiple
drives as a single large image)?
For a general overview of limits, see:
http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/deployguide/en-us/Default.asp?url=/resources/documentation/windowsserv/2003/all/deployguide/en-us/sdccc_fsv_duel.asp
Pat
"Min" <Min@discussions.microsoft.com> wrote in message
news:18AF9679-3DD6-40C4-BD2A-ED938A8C8749@microsoft.com...
Does any one know what's the maximum number of disk that windows
2003
support?
|
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| Back to top |
|
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Min
Guest
|
| Posted:
Tue Sep 14, 2004 4:41 am Post subject:
Re: Maximum number of disk. |
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|
Thanks for everyone's help. the problem is solve. It's a qlogic issue.
On the qlogic web site, it claims that support up to 256 target and each
target 256 luns.
But in reality, if I put more than 64 target on one hba, it will show only 64.
So I put 4 hba and each one has 48 disks connected and now the OS can see
192 disks. It's about 6.5 TB total.
Thanks for the help.
"msnews.microsoft.com" wrote:
| Quote: | The 128 TIDs per bus is likely to be your problem. You have 192 targets
attached so I suspect that you are seeing a wraparound effect (192-128 = 64,
minus one for the adapter).
Of course, another bigger "hole" in this is that any FC arbitrated loop can
only support 126 AL_PAs so you have a bunch of disks that are not getting
assigned target IDs (non-participating).
Then there's the whole perf quesiton, but I'll leave that alone...
"Min" <Min@discussions.microsoft.com> wrote in message
news:F9625A4C-8C92-4E4F-AC76-13367C093AA9@microsoft.com...
Thanks a lot Pat, I will give a try.
"Pat [MSFT]" wrote:
Ah.
The limits are described in Q310072. I would recommend reviewing it as
it
has some regkeys that may be involved here. Also, this is dependent on
the
HBA & Drivers, so you may need to contact your vendor for additional
information.
Basically:
- 8 buses per adapter
- 128 target IDs per bus
- 254 LUNs per target ID
Pat
"Min" <Min@discussions.microsoft.com> wrote in message
news:BE9947A8-99F0-4733-AA0B-8498366C67C5@microsoft.com...
Pat: The link you gave to me only has the maximum volume number and
volume
size, not the disk numbers. :(
"Min" wrote:
Yes, they are physical drives, and they are connected to a HBA in the
server.
And they ARE individule drives, no virtual lun created by controller.
To
be
more specific:
I've 16 JOBD, each JOBD has 12 disk, and all of them cascaded and then
connect to a Qlogic HBA. and then on the OS (windows 2003), I can only
see 63
disks.
"Pat [MSFT]" wrote:
It depends. Do you mean how many physical drives? How are they
being
presented by the HW (i.e. are you using a controller that presents
multiple
drives as a single large image)?
For a general overview of limits, see:
http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/deployguide/en-us/Default.asp?url=/resources/documentation/windowsserv/2003/all/deployguide/en-us/sdccc_fsv_duel.asp
Pat
"Min" <Min@discussions.microsoft.com> wrote in message
news:18AF9679-3DD6-40C4-BD2A-ED938A8C8749@microsoft.com...
Does any one know what's the maximum number of disk that windows
2003
support?
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