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mhammett

Promise M500i slowness

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I was moving everything to a Promise M500i iSCSI NAS box, but then everything started going slow and I lost an array or two.

I then decided to move everything off onto a Nexenta SAN. However, at its best it has moved data at 6 megabit/s. For a while I was just under 1 megabit/s. I would restart the boes trying to get better throughput, but now the copy process has been loading the file list for about a day and a half now.

The copy process is at a point that doesn't involve the Nexenta, but to rule that out, I can copy data to the Nexenta as fast as the cat5 cable ran to the other computer will allow.

I don't see any errors.

administrator@cli> event
===============================================================================
Seq   Device         Severity TimeStamp             Description                
===============================================================================
0     Ctrl 1         Info     Jan 28, 2013 12:07:39 The system is started      
1     SEP 1 Enc 1    Info     Jan 28, 2013 12:07:39 SEP is found               
2     BAT 1 Enc 1    Warning  Jan 28, 2013 12:07:39 Battery capacity is below  
                                                   the threshold
3     Port 1 Ctrl 1  Info     Jan 28, 2013 12:08:25 Host interface link is up  
4     Port 2 Ctrl 1  Info     Jan 28, 2013 12:08:26 Host interface link is up  
5     Port 1 Ctrl 1  Fatal    Jan 29, 2013 10:20:24 Host interface controller  
                                                   has encountered a fatal
                                                   error
6     Port 1 Ctrl 1  Info     Jan 29, 2013 10:20:34 Host interface link is up  

administrator@cli> stats

-------------------------------------------------------------------------------
Controller Statistics

-------------------------------------------------------------------------------
ControllerId: 1
DataTransferred: 42.02GB
ReadDataTransferred: 41.99GB           WriteDataTransferred: 36.95MB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 305,068                     NonRWRequest: 61,946
ReadIORequest: 233,664                 WriteIORequest: 9,458
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
Physical Drive Statistics

-------------------------------------------------------------------------------
PhyDrvId: 1
DataTransferred: 169KB
ReadDataTransferred: 169KB             WriteDataTransferred: 0Byte
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 598                         NonRWRequest: 530
ReadIORequest: 68                      WriteIORequest: 0
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
PhyDrvId: 2
DataTransferred: 74.23MB
ReadDataTransferred: 62.47MB           WriteDataTransferred: 11.77MB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 3,504                       NonRWRequest: 530
ReadIORequest: 916                     WriteIORequest: 2,058
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
PhyDrvId: 3
DataTransferred: 85.90MB
ReadDataTransferred: 61.90MB           WriteDataTransferred: 24MB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 4,238                       NonRWRequest: 530
ReadIORequest: 816                     WriteIORequest: 2,892
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
PhyDrvId: 4
DataTransferred: 77.95MB
ReadDataTransferred: 62.23MB           WriteDataTransferred: 15.72MB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 3,624                       NonRWRequest: 530
ReadIORequest: 842                     WriteIORequest: 2,252
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
PhyDrvId: 5
DataTransferred: 259.12MB
ReadDataTransferred: 259.07MB          WriteDataTransferred: 48KB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 14,318                      NonRWRequest: 3,098
ReadIORequest: 11,208                  WriteIORequest: 12
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
PhyDrvId: 6
DataTransferred: 259.17MB
ReadDataTransferred: 259.03MB          WriteDataTransferred: 144KB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 14,868                      NonRWRequest: 3,098
ReadIORequest: 11,740                  WriteIORequest: 30
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
PhyDrvId: 7
DataTransferred: 256.72MB
ReadDataTransferred: 256.44MB          WriteDataTransferred: 288KB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 14,210                      NonRWRequest: 3,098
ReadIORequest: 11,058                  WriteIORequest: 54
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
PhyDrvId: 8
DataTransferred: 258.73MB
ReadDataTransferred: 258.54MB          WriteDataTransferred: 192KB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 14,500                      NonRWRequest: 3,098
ReadIORequest: 11,366                  WriteIORequest: 36
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
PhyDrvId: 9
DataTransferred: 113.91MB
ReadDataTransferred: 87.39MB           WriteDataTransferred: 26.52MB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 4,666                       NonRWRequest: 530
ReadIORequest: 1,094                   WriteIORequest: 3,042
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:18

-------------------------------------------------------------------------------
Logical drive Statistics

-------------------------------------------------------------------------------
LogDrvId: 0
DataTransferred: 730.51MB
ReadDataTransferred: 730.33MB          WriteDataTransferred: 188KB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 51,696                      NonRWRequest: 26,622
ReadIORequest: 25,027                  WriteIORequest: 47
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:19

-------------------------------------------------------------------------------
LogDrvId: 1
DataTransferred: 25.93GB
ReadDataTransferred: 25.92GB           WriteDataTransferred: 18.22MB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 139,965                     NonRWRequest: 11,515
ReadIORequest: 123,785                 WriteIORequest: 4,665
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:19

-------------------------------------------------------------------------------
LogDrvId: 2
DataTransferred: 206.50KB
ReadDataTransferred: 206.50KB          WriteDataTransferred: 0Byte
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 11,918                      NonRWRequest: 11,801
ReadIORequest: 117                     WriteIORequest: 0
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:19

-------------------------------------------------------------------------------
LogDrvId: 6
DataTransferred: 15.38GB
ReadDataTransferred: 15.36GB           WriteDataTransferred: 18.54MB
Errors: 0                              NonRWErrors: 0
ReadErrors: 0                          WriteErrors: 0
IORequest: 101,489                     NonRWRequest: 12,008
ReadIORequest: 84,735                  WriteIORequest: 4,746
StatsStartTime: Jan 28, 2013 12:07:38
StatsCollectionTime: Jan 30, 2013 06:58:19

administrator@cli> transit
This background activity is not running.


administrator@cli> iscsi

-------------------------------------------------------------------------------
NodeName: iqn.1994-12.com.promise.b6.21.4.55.1.0.0.20
Alias: VTrak M500i
Role: Target                           ErrorRecovLevel: 0
MaxOutStandingR2T: 1                   MaxConnection: 1
FirstBurstLen: 512 bytes               MaxBurstLen: 262,144 bytes
DefTimeToWait: 2 second(s)             DefTimeToRetain: 20 second(s)
ImmediateData: Disabled                InitialR2T: Enabled
HeaderDigest: Disabled                 DataDigest: Disabled
UniCHAPAuth: Disabled                  BiCHAPAuth: Disabled
DataPDUInOrder: Disabled               DataSeqInOrder: Disabled
NodeStatus: Up

Well, okay, it looks like it did have a failure yesterday. Now to figure out what that means.

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