Using ESCON attached 3590 for TSM 5.5 / Linux

2008-07-16 Thread Mike Hammock
One of our customers who does not follow this list asked me to post a
question here.

They are running SLES 10 SP1 in an instance on a FLEX-ES system.  (Think of
this as running in an LPAR on a normal system.  That is, no zVM.)
They have an ESCON connected 3590 that they can use from the Linux system
with no problem, but apparently there is a 'special' device driver supplied
for TSM 5.5 and when they install it, the driver apparently does not 'see'
the tape device.  They found a statement that TSM only supports Fiber
attached tape devices, but we're not sure if Fiber in this context
includes ESCON or not and I can't see why TSM should care as long as Linux
is happy with the device.

Does anyone else have any experience with this combination (TSM 5.5 on SLES
10 with ESCON 3590) or possibly have any suggestions??

Thanks
Mike
C. M. (Mike) Hammock
Sr. Technical Support
zFrame  IBM zSeries Solutions
(404) 643-3258
[EMAIL PROTECTED]


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Re: Using ESCON attached 3590 for TSM 5.5 / Linux

2008-07-16 Thread Christian Borntraeger
Am Mittwoch, 16. Juli 2008 schrieb Mike Hammock:
 They are running SLES 10 SP1 in an instance on a FLEX-ES system.  (Think of
 this as running in an LPAR on a normal system.  That is, no zVM.)
 They have an ESCON connected 3590 that they can use from the Linux system
 with no problem, but apparently there is a 'special' device driver supplied
 for TSM 5.5 and when they install it, the driver apparently does not 'see'
 the tape device.  They found a statement that TSM only supports Fiber
 attached tape devices, but we're not sure if Fiber in this context
 includes ESCON or not and I can't see why TSM should care as long as Linux
 is happy with the device.

 Does anyone else have any experience with this combination (TSM 5.5 on SLES
 10 with ESCON 3590) or possibly have any suggestions??

As far as I know, TSM for Linux only supports FCP-attached (scsi) tapes.
Channel attachement like FICON or ESCON are not supported.

Christian

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Re: Using ESCON attached 3590 for TSM 5.5 / Linux

2008-07-16 Thread Mike Hammock
Thanks Christian...
That's what we were afraid of, but were not sure...
They are trying to do a proof of concept with their existing equipment
(ESCON 3590) and I don't believe there is any way to connect a true FCP or
SCSI tape device to the Linux system on a FLEX-ES system, so I suspect they
are out of luck for now...
I assume that running zVM in the instance/LPAR and attaching the tape
device to a Linux guest would not make any difference, correct?
If anyone else has any ideas or suggestions, we'd be glad to listen..

Thanks

C. M. (Mike) Hammock
Sr. Technical Support
zFrame  IBM zSeries Solutions
(404) 643-3258
[EMAIL PROTECTED]



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Am Mittwoch, 16. Juli 2008 schrieb Mike Hammock:
 They are running SLES 10 SP1 in an instance on a FLEX-ES system.  (Think
of
 this as running in an LPAR on a normal system.  That is, no zVM.)
 They have an ESCON connected 3590 that they can use from the Linux system
 with no problem, but apparently there is a 'special' device driver
supplied
 for TSM 5.5 and when they install it, the driver apparently does not
'see'
 the tape device.  They found a statement that TSM only supports Fiber
 attached tape devices, but we're not sure if Fiber in this context
 includes ESCON or not and I can't see why TSM should care as long as
Linux
 is happy with the device.

 Does anyone else have any experience with this combination (TSM 5.5 on
SLES
 10 with ESCON 3590) or possibly have any suggestions??

As far as I know, TSM for Linux only supports FCP-attached (scsi) tapes.
Channel attachement like FICON or ESCON are not supported.

Christian

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visit
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authorized to receive for the recipient), please contact the sender by reply 
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administrator directly, send an email to [EMAIL PROTECTED]

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Re: Using ESCON attached 3590 for TSM 5.5 / Linux

2008-07-16 Thread David Boyes
 the tape device.  They found a statement that TSM only supports Fiber
 attached tape devices, but we're not sure if Fiber in this context
 includes ESCON or not 

It does not. TSM doesn't understand channel-attached tape on Linux at
all. FCP-only. Your 3590 is useless for this purpose.

 Does anyone else have any experience with this combination (TSM 5.5 on
 SLES
 10 with ESCON 3590) or possibly have any suggestions??

If you want a Linux-only solution, buy a FCP tape drive. Or install
z/OS.e and use the z/OS TSM to drive your channel-attached tape. Those
are the choices on offer from IBM. 

Since most people don't like those options much, you can also use the
remote volume option of the VM TSM server to drive the actual tapes
(since it DOES understand channel-attached tape), and configure the
Linux TSM server to use the CMS server as the destination for the
virtual volumes. Look at the docs for virtual volume support -- there
are some limitations but you don't end up with an entire z/OS system
just to do backups. 

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