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sunhux
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No Tape Drives detected in Windows though HBA connection is Up / operational

I have 2 x3850  servers (both servers are member of an MSCS
cluster).  The servers are called DBS01 & DBS02 & both run
Win 2008 R2 Enterprise x64.

The way it's connected in this organization is such that FC
switches are dedicated for SAN & another FC switch is
dedicated for backup tape library to connect to.

So DBS01 & 02 each has 2 fibre connection to a pair of
FC switches which SAN storage is connected up : I have
no issue with this as both servers could detect the SAN
LUNs.

Each server has one single fibre connection to an IBM
FC switch which also has an IBM TS3200 tape library
connected to it.

The problem I face is DBS02's Windows can't detect
any Tape Drive while DBS01's Windows detected them:
refer to the attached four screens.

What did I miss?  Any specific driver needed?  I recall
for DBS01, I did not have to install any driver, just do
a reboot once the IBM 4Gbps FC switch has configured
the port.  DBS02 was rebooted several times to no avail.

I've compared the HBA port configurations for both
DBS01 & DBS02 using HBAnywhere & they're both the
same except that for DBS01, the speed is Auto-Detect
while for DBS02, I had to fix the speed at 4Gbps (because
using Auto-detect, the FC switch's port link light kept
going amber for DBS02).  I've also tried connecting that
 port on DBS02 directly to one of the four tape drive &
HBAnywhere reported the link as Operational / Up.

I've also swap the FC ports ie DBS02 connects up to
DBS01's FC switch port while DBS01 connects up to
DBS02's FC switch port.  No joy
DBS01-FC.jpg
DBS02-FC.jpg
DBS01-TapeDrvPresent.jpg
DBS02-noTapeDrv.jpg
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Last Comment
Gerald Connolly

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
arnold

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sunhux

ASKER
> It looks/sounds like a zoning issue on the switch where the tape is.
I did disconnect DBS01 from the FC switch port & connect up DBS02 to
this port.  Still not detecting the tape drives

>On the other hand not sure you can have multiple devices connect directly to a
>tape drive.  The access to the tape might be part of the cluster resource  I.e.
>LUNs and the tape drives are only accessible from the active node in the cluster.
Well it's not direct connection but via an FC switch.  In another DC, we have
another pair of MS SQL clustered DB servers which were able to detect
an Oracle SL500 tape library & they all connect to a common HP FC switch,
so its similar configuration
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sunhux

ASKER
Suppose I connect the server's FC port directly (ie bypassing the FC switch) to
the TS3200 FC tape drive, it should detect the drive, & show up as "Tape Drive"
under Device Manager, right?

I'll need to test & showcase this to convince the FC switch administrator that
it's a zoning issue.
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sunhux

ASKER
Ok, thanks chaps.

Actually the FC switch admin is my customer & I sold
them the servers and tape library.

I tried connecting the Emulex HBA (which supports FCAL
& non-FCAL) to the IBM TS3200 FC drive today, setting
the Emulex HBA ports with various topologies (F-port,
Loop, F followed by L & L followed by F) & with different
settings on the FC tape drive as well (N-port, L-port but
due to shortage of time did not manage to try one last
setting on the tape drive ie LN-port) : each time rebooting
the server to redetect the tape drive but no joy.
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William Peck
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