[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-API] xcp-xapi devscan.py kernel support
It supposed that only one XCP host will be connected to that storage (ports P2000 zoning also configured only for that host). Also if this storage will be created as local (shared=false) other XCP hosts and background proccesses can access/collide to that SR anyway? 18.01.2013 12:23, George Shuklin ÐÐÑÐÑ: You should be 146% sure no other hosts will access storage in that case. If some background process (f.e. VHD coalesing) will collide with others hosts activity on SR, you will trash some random peice of data (may be including LVM metadata). 17.01.2013 22:34, Andrey ÐÐÑÐÑ:Thank you for the patch, will try to apply it. In our configuration we don't need shared lvm SR because we have one server with dual-path directly attached P2000 SAN. I also have configured multipath for the LUNs. So may be we can create local LVM SR then for the multipath devices? 17.01.2013 18:19, Simon Beaumont ÐÐÑÐÑ:-----Original Message----- From: xen-api-bounces@xxxxxxxxxxxxx [mailto:xen-api-bounces@xxxxxxxxxxxxx] On Behalf Of Andrey Sent: 17 January 2013 12:56 PM To: xen-api@xxxxxxxxxxxxx Subject: [Xen-API] xcp-xapi devscan.py kernel support I installed xcp-xapi on the Debian Wheezy and can't get LVMoHBA to work: stderr: Traceback (most recent call last): File "/usr/lib/xcp/sm/LVMoHBASR", line 220, in <module> SRCommand.run(LVHDoHBASR, DRIVER_INFO) File "/usr/lib/xcp/sm/SRCommand.py", line 261, in run sr = driver(cmd, cmd.sr_uuid) File "/usr/lib/xcp/sm/SR.py", line 136, in __init__ self.load(sr_uuid) File "/usr/lib/xcp/sm/LVMoHBASR", line 94, in load print >>sys.stderr,self.hbasr.print_devs() File "/usr/lib/xcp/sm/HBASR.py", line 224, in print_devs self._init_hbadict() File "/usr/lib/xcp/sm/HBASR.py", line 61, in _init_hbadict dict = devscan.adapters(filterstr=self.type) File "/usr/lib/xcp/sm/devscan.py", line 168, in adapters glob.glob(os.path.join(path,"device","block:*"))[0]).split(':')[1] IndexError: list index out of range Can you please send devscan.py patch to support lvmohba in kernel 3.X.I have attached the patch in question. It uses the right sysfs paths after detecting the kernel version. It might not apply to your version but it may help you make the change you require.Also will in this case other lvmohba features will work smoothly in that case on Debian, especially multipath?It's unlikely you'll get LVM to work with your setup since we use a patched version that accepts another option (--master) which affords us a different locking mechanism to allow shared SRs. This option doesn't exist in the upstream Debian LVM. It may(!) be possible to get it to work if you remove the --master option from the calls to lvm in the source and ensure that you are only using these SRs in single-host pools. Again, your mileage may vary. Hope this helps, -Si_______________________________________________ Xen-api mailing list Xen-api@xxxxxxxxxxxxx http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api_______________________________________________ Xen-api mailing list Xen-api@xxxxxxxxxxxxx http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api _______________________________________________ Xen-api mailing list Xen-api@xxxxxxxxxxxxx http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api
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