[pve-devel] ZFS plugin: Patch to solve issue with nexenta

Michael Rasmussen mir at datanom.net
Wed Nov 6 08:48:33 CET 2013


Maybe using dtrace or strace could give you ideas?

Alexandre DERUMIER <aderumier at odiso.com> wrote:
>Hi,
>
>the patch seem to generate now similar guid than nexenta
>
>600144f0a06f0700000055428993c0c1  34359738368         
>/dev/zvol/rdsk/MainPool/vm-296-disk-9 -> generate with last patch
>600144f0a06f07000000558811e9da14  34359738368         
>/dev/zvol/rdsk/MainPool/vm-296-disk-8
>600144f0a06f070000005c6f449515d5  34359738368         
>/dev/zvol/rdsk/MainPool/vm-296-disk-7
>600144f0a26587000000519e535b0001  34359738368         
>/dev/zvol/rdsk/MainPool/vm-277-disk-1
>600144f0a265870000005242d93c0001  34359738368         
>/dev/zvol/rdsk/MainPool/vm-291-disk-1-> generate with nexenta
>600144f0a265870000005242dafb0003  34359738368         
>/dev/zvol/rdsk/MainPool/base-292-disk-1 -> generate with nexenta
>600144f0a26587000000527922280001  34359738368         
>/dev/zvol/rdsk/MainPool/vm-296-disk-5
>600144f675f1c980c38752a0647ba5e6  34359738368         
>/dev/zvol/rdsk/MainPool/vm-296-disk-6 -> generate with previous patch
>600144ff713ed897226e5d64732418ff  34359738368         
>/dev/zvol/rdsk/MainPool/vm-292-disk-3 -> generate with previous patch
>
>But It doesn't help for the gui error
>
>My understanding is that nexenta generate a cache somewhere, and
>something it's not filled
>
>some log:
>
>Nov 06 17:03:09 (1:1.5) EXCEPTION: ObjectNotFound:
>ScsiDiskContainer::list_lun_mapping_entries(MainPool/vm-296-disk-7):
>Unable to locate the specified zvol 'MainPool/vm-296-disk-7' 
>
>2013-11-06 17:10:08,255 nza ERROR
>com.nexenta.nms::/Root/Stmf/ScsiDisk::list_lun_mapping_entries(dbus.String(u'MainPool/vm-296-disk-9')):
>com.nexenta.nms.ObjectNotFound: Unable to locate the specified zvol
>'MainPool/vm-296-disk-9' 
>
>
>
>after waiting some minutes, or rlauching the nms service (webgui
>service) (#svcadm restart nms)
>
>It's working again
>
>(The module is in python, but closed sources, compiled .pyc, I can't
>see what it is doing)
>
>
>restarting nms stop the web gui for some minutes,
>
>but in the logs it's showing:
>Nov 06 17:28:15 Starting...
>Nov 06 17:28:15 Syncing devices...
>Nov 06 17:28:22 Syncing LUNs...
>
>So I think it's rebuild the luns cache or something similar
>
>
>I'll try to find an easy way to reload this cache. (through ssh
>command)
>
>
>----- Mail original -----
>
>De: "Michael Rasmussen" <mir at datanom.net> 
>À: "Alexandre DERUMIER" <aderumier at odiso.com>,
>pve-devel at pve.proxmox.com 
>Envoyé: Mardi 5 Novembre 2013 19:28:52 
>Objet: Re: [pve-devel] ZFS plugin: Patch to solve issue with nexenta 
>
>On Tue, 05 Nov 2013 18:45:34 +0100 (CET) 
>Alexandre DERUMIER <aderumier at odiso.com> wrote: 
>
>> I'll try tomorrow ! 
>> 
>If the solution works it will cause no problems to only use 11 digits 
>when naming a lun since max luns per target is limited to 2^14 or 16384
>
>and using 11 hex digits is an astronomic large number 11^16 
>
>-- 
>Hilsen/Regards 
>Michael Rasmussen 
>
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>michael <at> rasmussen <dot> cc 
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>mir <at> miras <dot> org 
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>-------------------------------------------------------------- 
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>
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-- 
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