tdubb123
3 Zinc

Re: lun tresspass and round robin

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yes multiple luns. i have changed useano on all of them to 0.

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christopher_ime
4 Ruthenium

Re: lun tresspass and round robin

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That will explain why you are seeing activity on each of your HBA's as each have their own LUN queue and I/O managed separately.

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tdubb123
3 Zinc

Re: lun tresspass and round robin

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is there a digaram for the clariion that will show the 8 paths to both sps?

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tdubb123
3 Zinc

Re: lun tresspass and round robin

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so with rr enabled and failovermode 4 and useano=0

should i expect any traffic on the non owner SP?

naviseccli -h x.x.x.x getlun 54

only shows SPA traffic and no SPB

---------------------------------------------------------

Prefetch size (blocks) =         0

Prefetch multiplier =            4

Segment size (blocks) =          0

Segment multiplier =             4

Maximum prefetch (blocks) =      4096

Prefetch Disable Size (blocks) = 4097

Prefetch idle count =            40

Variable length prefetching YES

Prefetched data retained    YES

Read cache configured according to

specified parameters.

Total Hard Errors:          0

Total Soft Errors:          0

Total Queue Length:         3745610040

Name                        LUN 54

Minimum latency reads N/A

Read Histogram[0] 290451

Read Histogram[1] 61478

Read Histogram[2] 168788

Read Histogram[3] 2389310

Read Histogram[4] 7899389

Read Histogram[5] 431628

Read Histogram[6] 2622510

Read Histogram[7] 1229403

Read Histogram[8] 28183

Read Histogram[9] 7974

Read Histogram overflows 16598

Write Histogram[0] 72533563

Write Histogram[1] 9007154

Write Histogram[2] 4271866

Write Histogram[3] 733678145

Write Histogram[4] 9298012

Write Histogram[5] 3019329

Write Histogram[6] 634647

Write Histogram[7] 4998888

Write Histogram[8] 202331

Write Histogram[9] 84174

Write Histogram overflows 128670

Read Requests:              15008985

Write Requests:             835166521

Blocks read:                530453223

Blocks written:             2903275122

Read cache hits:            10930559

Read cache misses:          N/A

Prefetched blocks:          453863488

Unused prefetched blocks:   29191349

Write cache hits:           821884244

Forced flushes:             75202

Read Hit Ratio:             N/A

Write Hit Ratio:            N/A

RAID Type:                  RAID1/0

RAIDGroup ID:               25

State:                      Bound

Stripe Crossing:            2524122

Element Size:               128

Current owner:              SP A

Offset:                     0

Auto-trespass:              DISABLED

Auto-assign:                DISABLED

Write cache:                ENABLED

Read cache:                 ENABLED

Idle Threshold:             0

Idle Delay Time:            20

Write Aside Size:           2048

Default Owner:              SP A

Rebuild Priority:           High

Verify Priority:            Medium

Prct Reads Forced Flushed:  0

Prct Writes Forced Flushed: 0

Prct Rebuilt:               100

Prct Bound:                 100

LUN Capacity(Megabytes):    512000

LUN Capacity(Blocks):       1048576000

UID:                        60:06:01:60:5A:91:28:00:62:84:AF:23:3F:A6:E1:11

Bus 0 Enclosure 7  Disk 13  Queue Length:               32979292

Bus 0 Enclosure 7  Disk 11  Queue Length:               36054202

Bus 0 Enclosure 7  Disk 9  Queue Length:               37404138

Bus 0 Enclosure 7  Disk 7  Queue Length:               40380190

Bus 0 Enclosure 7  Disk 12  Queue Length:               24831953

Bus 0 Enclosure 7  Disk 10  Queue Length:               27888966

Bus 0 Enclosure 7  Disk 8  Queue Length:               29799748

Bus 0 Enclosure 7  Disk 6  Queue Length:               31939528

Bus 0 Enclosure 7  Disk 13  Hard Read Errors:           0

Bus 0 Enclosure 7  Disk 11  Hard Read Errors:           0

Bus 0 Enclosure 7  Disk 9  Hard Read Errors:           0

Bus 0 Enclosure 7  Disk 7  Hard Read Errors:           0

Bus 0 Enclosure 7  Disk 12  Hard Read Errors:           0

Bus 0 Enclosure 7  Disk 10  Hard Read Errors:           0

Bus 0 Enclosure 7  Disk 8  Hard Read Errors:           0

Bus 0 Enclosure 7  Disk 6  Hard Read Errors:           0

Bus 0 Enclosure 7  Disk 13  Hard Write Errors:          0

Bus 0 Enclosure 7  Disk 11  Hard Write Errors:          0

Bus 0 Enclosure 7  Disk 9  Hard Write Errors:          0

Bus 0 Enclosure 7  Disk 7  Hard Write Errors:          0

Bus 0 Enclosure 7  Disk 12  Hard Write Errors:          0

Bus 0 Enclosure 7  Disk 10  Hard Write Errors:          0

Bus 0 Enclosure 7  Disk 8  Hard Write Errors:          0

Bus 0 Enclosure 7  Disk 6  Hard Write Errors:          0

Bus 0 Enclosure 7  Disk 13  Soft Read Errors:           0

Bus 0 Enclosure 7  Disk 11  Soft Read Errors:           0

Bus 0 Enclosure 7  Disk 9  Soft Read Errors:           0

Bus 0 Enclosure 7  Disk 7  Soft Read Errors:           0

Bus 0 Enclosure 7  Disk 12  Soft Read Errors:           0

Bus 0 Enclosure 7  Disk 10  Soft Read Errors:           0

Bus 0 Enclosure 7  Disk 8  Soft Read Errors:           0

Bus 0 Enclosure 7  Disk 6  Soft Read Errors:           0

Bus 0 Enclosure 7  Disk 13  Soft Write Errors:          0

Bus 0 Enclosure 7  Disk 11  Soft Write Errors:          0

Bus 0 Enclosure 7  Disk 9  Soft Write Errors:          0

Bus 0 Enclosure 7  Disk 7  Soft Write Errors:          0

Bus 0 Enclosure 7  Disk 12  Soft Write Errors:          0

Bus 0 Enclosure 7  Disk 10  Soft Write Errors:          0

Bus 0 Enclosure 7  Disk 8  Soft Write Errors:          0

Bus 0 Enclosure 7  Disk 6  Soft Write Errors:          0

Bus 0 Enclosure 7  Disk 13   Enabled

Reads:            9819903

Writes:           3785192

Blocks Read:      2616023789

Blocks Written:   696161897

Queue Max:        N/A

Queue Avg:        N/A

Avg Service Time: N/A

Prct Idle:        96.24

Prct Busy:        3.75

Remapped Sectors: N/A

Read Retries:     N/A

Write Retries:    N/A

Bus 0 Enclosure 7  Disk 11   Enabled

Reads:            9777037

Writes:           4068287

Blocks Read:      2616735191

Blocks Written:   695087069

Queue Max:        N/A

Queue Avg:        N/A

Avg Service Time: N/A

Prct Idle:        96.21

Prct Busy:        3.78

Remapped Sectors: N/A

Read Retries:     N/A

Write Retries:    N/A

Bus 0 Enclosure 7  Disk 9   Enabled

Reads:            9651814

Writes:           4178275

Blocks Read:      2609343868

Blocks Written:   694916327

Queue Max:        N/A

Queue Avg:        N/A

Avg Service Time: N/A

Prct Idle:        96.26

Prct Busy:        3.73

Remapped Sectors: N/A

Read Retries:     N/A

Write Retries:    N/A

Bus 0 Enclosure 7  Disk 7   Enabled

Reads:            9475994

Writes:           4315509

Blocks Read:      2608548756

Blocks Written:   694674816

Queue Max:        N/A

Queue Avg:        N/A

Avg Service Time: N/A

Prct Idle:        96.24

Prct Busy:        3.75

Remapped Sectors: N/A

Read Retries:     N/A

Write Retries:    N/A

Bus 0 Enclosure 7  Disk 12   Enabled

Reads:            4396828

Writes:           3785192

Blocks Read:      2351184628

Blocks Written:   696161897

Queue Max:        N/A

Queue Avg:        N/A

Avg Service Time: N/A

Prct Idle:        97.07

Prct Busy:        2.92

Remapped Sectors: N/A

Read Retries:     N/A

Write Retries:    N/A

Bus 0 Enclosure 7  Disk 10   Enabled

Reads:            4379956

Writes:           4068287

Blocks Read:      2354732909

Blocks Written:   695087069

Queue Max:        N/A

Queue Avg:        N/A

Avg Service Time: N/A

Prct Idle:        97.03

Prct Busy:        2.96

Remapped Sectors: N/A

Read Retries:     N/A

Write Retries:    N/A

Bus 0 Enclosure 7  Disk 8   Enabled

Reads:            4407318

Writes:           4178275

Blocks Read:      2353188774

Blocks Written:   694916327

Queue Max:        N/A

Queue Avg:        N/A

Avg Service Time: N/A

Prct Idle:        97.03

Prct Busy:        2.96

Remapped Sectors: N/A

Read Retries:     N/A

Write Retries:    N/A

Bus 0 Enclosure 7  Disk 6   Enabled

Reads:            4318452

Writes:           4315509

Blocks Read:      2353607569

Blocks Written:   694674816

Queue Max:        N/A

Queue Avg:        N/A

Avg Service Time: N/A

Prct Idle:        96.99

Prct Busy:        3.00

Remapped Sectors: N/A

Read Retries:     N/A

Write Retries:    N/A

Is Private:                 NO

Snapshots List:             Not Available

MirrorView Name if any:     Not Available

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tdubb123
3 Zinc

Re: lun tresspass and round robin

Jump to solution

on page 11

http://www.emc.com/collateral/hardware/white-papers/h2890-emc-clariion-asymm-active-wp.pdf

it does mention that there should be traffic on both SPs. but I am only seeing SPA.

why is that?

statistics logging is enabled

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christopher_ime
4 Ruthenium

Re: lun tresspass and round robin

Jump to solution

Please check the current owner for each of the LUNs assigned to the ESX/ESXi host you are monitoring.  It is possible that they are all owned by the same SP either because they were assigned that way or over time those assigned to the peer SP trespassed to the SP and without a mechanism to failback to the default owner, this may explain what you are reporting.  Remember with Round-Robin, you have to manage trespassed LUNs either due to an explicit or implicit trespass.

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