[dm-devel] EMC CX LUN problem
Nicola Murino
n.murino at theorematica.it
Wed Jan 25 08:08:24 UTC 2006
Hi thanks all for your help,
I have two raid group, each raid group has two lun, the lun of the first
raid group are for a linux cluster, the lun of the second raid group are
for a windows cluster,
I installed navicli, this is the output you requested:
./navicli -h 192.168.2.11 getlun
Statistics logging is disabled.
Certain fields are not printed if statistics
logging is not enabled.
LOGICAL UNIT NUMBER 0
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: 0
Name ql
Minimum latency reads N/A
RAID Type: RAID5
RAIDGroup ID: 0
State: Bound
Stripe Crossing: 0
Element Size: 128
Current owner: SP B
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 B
Rebuild Priority: ASAP
Verify Priority: ASAP
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: 60:06:01:60:86:F0:16:00:BE:5A:CA:73:DB:8C:DA:11
Is Private: NO
Snapshots List: None
MirrorView Name if any: Not Mirrored
LOGICAL UNIT NUMBER 2
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: 0
Name win
Minimum latency reads N/A
RAID Type: RAID5
RAIDGroup ID: 1
State: Bound
Stripe Crossing: 0
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: ASAP
Verify Priority: ASAP
Prct Reads Forced Flushed: 0
Prct Writes Forced Flushed: 0
Prct Rebuilt: 100
Prct Bound: 100
LUN Capacity(Megabytes): 819200
LUN Capacity(Blocks): 1677721600
UID: 60:06:01:60:86:F0:16:00:B6:2F:72:8B:DB:8C:DA:11
Is Private: NO
Snapshots List: None
MirrorView Name if any: Not Mirrored
LOGICAL UNIT NUMBER 3
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: 0
Name quorum
Minimum latency reads N/A
RAID Type: RAID5
RAIDGroup ID: 1
State: Bound
Stripe Crossing: 0
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: ASAP
Verify Priority: ASAP
Prct Reads Forced Flushed: 0
Prct Writes Forced Flushed: 0
Prct Rebuilt: 100
Prct Bound: 100
LUN Capacity(Megabytes): 5120
LUN Capacity(Blocks): 10485760
UID: 60:06:01:60:86:F0:16:00:FC:D3:8B:91:DB:8C:DA:11
Is Private: NO
Snapshots List: None
MirrorView Name if any: Not Mirrored
LOGICAL UNIT NUMBER 1
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: 0
Name mail
Minimum latency reads N/A
RAID Type: RAID5
RAIDGroup ID: 0
State: Bound
Stripe Crossing: 0
Element Size: 128
Current owner: SP B
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 B
Rebuild Priority: ASAP
Verify Priority: ASAP
Prct Reads Forced Flushed: 0
Prct Writes Forced Flushed: 0
Prct Rebuilt: 100
Prct Bound: 100
LUN Capacity(Megabytes): 153600
LUN Capacity(Blocks): 314572800
UID: 60:06:01:60:86:F0:16:00:E4:6F:56:7A:DB:8C:DA:11
Is Private: NO
Snapshots List: None
MirrorView Name if any: Not Mirrored
the output of scsi_id is the same:
server2 block # scsi_id -g -u -s /block/sdb
36006016086f01600e46f567adb8cda11
server2 block # scsi_id -g -u -s /block/sdc
36006016086f01600e46f567adb8cda11
server2 block # scsi_id -g -u -s /block/sdd
36006016086f01600e46f567adb8cda11
server2 block # scsi_id -g -u -s /block/sde
36006016086f01600e46f567adb8cda11
server2 block # scsi_id -g -u -s /block/sdf
36006016086f01600e46f567adb8cda11
server2 block # scsi_id -g -u -s /block/sdg
36006016086f01600e46f567adb8cda11
server2 block # scsi_id -g -u -s /block/sdh
36006016086f01600e46f567adb8cda11
server2 block # scsi_id -g -u -s /block/sdi
36006016086f01600e46f567adb8cda11
I can see and write only on the LUN called mail, I'm not able to see ql
thanks for your help,
regards
Nicola
Bernd Zeimetz ha scritto:
> Hi,
>
>
>>> I'm trying to configure a new emc cx storage, I have the following:
>>>
>>>
>>> I defined two lun on the storage however I'm able to see only one LUN
>>>
>>> multipath -l show the following:
>>>
>>> multipath -l
>>> mail (36006016086f01600e46f567adb8cda11)
>>> [size=150 GB][features="1 queue_if_no_path"][hwhandler="1 emc"]
>>> \_ round-robin 0 [active]
>>> \_ 1:0:1:0 sdd 8:48 [active][ready]
>>> \_ 1:0:1:1 sde 8:64 [active][ready]
>>> \_ 2:0:1:0 sdh 8:112 [active][ready]
>>> \_ 2:0:1:1 sdi 8:128 [active][ready]
>>> \_ round-robin 0 [enabled]
>>> \_ 2:0:0:0 sdf 8:80 [active][ready]
>>> \_ 1:0:0:0 sdb 8:16 [active][ready]
>>> \_ 1:0:0:1 sdc 8:32 [active][ready]
>>> \_ 2:0:0:1 sdg 8:96 [active][ready]
>>>
>>>
>>>
>>>
> did you probably just share one raid group via 2 LUNs? Then the output
> of multipath is imho indeed right. For me it shows the setup you've
> described - one raidgroup, shared via 2 LUNs (usually one per default on
> SP A, one on SP B, attached via 2 paths per SP to a switch, accessed
> from your server via 2 HBAs.
> If you have access to the Navisphere cli tool - please post the output of
>
> ./navicli -h IP_OF_ONE_OF_YOUR_SPs getlun
>
> I think this will show that my hint is right.
> Imho you want to create a second raid group and share it via 2 LUNs, too.
>
>
>> http://christophe.varoqui.free.fr/wiki/wakka.php?wiki=TestedEnvironments
>>
>>
>>
> I hope there's nothing wring with the stuff I've written about the
> EMC/CX in there, if you find anything please let me know - I don't look
> in there often.
>
>
> Hope that helps,
>
> best regards
>
>
> Bernd
>
> --
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> dm-devel at redhat.com
> https://www.redhat.com/mailman/listinfo/dm-devel
>
>
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