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Celerra, SMB2 signing, and Riverbed
Anyone had any luck using WAN acceleration for CIFS shares using a Riverbed appliance when utilizing SMB2 signing? Riverbed is telling my network guys that Celerra does not properly adhere to SMB signing rules, and they are unable to accelerate the traffic.
Rainer_EMC
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August 3rd, 2011 11:00
Check the DART release notes – I remember seeing some fixed problem with Riverbed and SMB there
gbarretoxx1
366 Posts
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August 3rd, 2011 13:00
Hi,
this is what Rainer talked about :
Symptom Desc.
Data Mover panicked when a Windows 7 client connected to a CIFS share through a Riverbed WAN accelerator with the SMB2 protocol enabled. The Riverbed WAN accelerator sent an SMB2_IOCTRL request compounded with SMB2 commands which the Data Mover did not decode correctly. DART panic/fault message:
>>PANIC in file: /disks/NSG_Maint8/6.0_ build
_nfs_env/Dart/server/src/kernel/include/stream.hxx at line:
1119 : datab::freeRef: db_ref <= 0 Panicking Processor: 3
.
The stack trace showed:
245ea0: 0xdcc4fd _ZN14smb2_threadCtx7processEP4msgbi+0xf57
245f20: 0xdee8d6 _ZN13smb_threadCtx5startEv+0xc4c
245fd0: 0x155263 Sthread_startThread_internal+0x7
Fix
The Data Mover now properly handles compound SMB2 requests received in this manner.
Fixed in version :
6.0.42.0
DART 6.0.42.3 had some issues and was pulled back, but will be released again soon.
Gustavo Barreto.