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тАО06-12-2009 07:37 AM - last edited on тАО01-18-2015 10:50 PM by Maiko-I
тАО06-12-2009 07:37 AM - last edited on тАО01-18-2015 10:50 PM by Maiko-I
Max LUN per HBA
Hi,
What is the maximum LUN limit per FC HBA from the XP12000 Array and EVA8000 Array?
Info:
HP-UX 11iv2
4Gbps dual port fibre channel adapter
Thanks,
Srini
P.S. This threadhas been moevd from General to Storage Area Networks (SAN) (Enterprise). - Hp forum Moderator
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тАО06-12-2009 09:07 AM
тАО06-12-2009 09:07 AM
Re: Max LUN per HBA
it is the queue depth which specifies the outstanding IOPs per LUN
XP
XP12000 max queue depth
XP12000 optimum queue depth is 16 for most workloads
HP-UX/EVA8000
device queue depth is set to 8 by default per LUN
HP-UX v 11.00 -> scsictl command
HP-UX v 11i -> kernel parameter scsi_max_qdepth
queuedepth should be increased e.g from 8 to 64 on EVA 8000 if only a few LUNs are being accessed
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тАО06-12-2009 09:10 AM
тАО06-12-2009 09:10 AM
Re: Max LUN per HBA
Max 1023 luns all together
Max 255 luns per HBA target (on HP-UX, different for other OS's)
" http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c00403562/c00403562.pdf "
Steven
HP Master ASE, Storage, Servers, and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5, vSphere 6.x)
RHCE
NPP3 (Nutanix Platform Professional)
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тАО06-12-2009 09:15 AM
тАО06-12-2009 09:15 AM
Re: Max LUN per HBA
XP12000 max queue depth - 1024
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тАО06-13-2009 12:33 AM
тАО06-13-2009 12:33 AM
Re: Max LUN per HBA
http://www.hp.com/go/sandesign
For the EVA you will find the numbers in chapter 11.
As an example in table 127 you will see that for EVA and HP-UX one HBA may see up to 32 EVAs and an HBA may have up to 255 LUNs.
Note that Continuous Access EVA will bring down these limits. Just read on in the SAN Guide.
Cheers
XP-Pete
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тАО06-15-2009 12:19 AM
тАО06-15-2009 12:19 AM
Re: Max LUN per HBA
http://forums13.itrc.hp.com/service/forums/questionanswer.do?threadId=1327325
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тАО06-16-2009 03:18 AM
тАО06-16-2009 03:18 AM