[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [linux-lvm] Could vgscan read a file of "preferred" LV name -> minor device id ?



On Fri, Jan 11, 2002 at 07:11:00AM +0000, Piete Brooks wrote:
> I'm getting complaints from NFS users that when servers reboot, they often 
> find that their mounts have the wrong data.  I've never really worked out 
> which end hold what in NFS FHs, but the basic idea is that a client identifies 
> a FH which encodes (major dev id,minor dev id,inode number,version).
> This appears to break down when a new LV is created ane the server rebooted.
> As the /dev/<vg>/<lv> nodes are numbered strictly in the order that they are 
> discovered, all LV minor device IDs on subsequent VGs are renumbered, so any 
> remote caching of FHs breaks (( as with SCSI )).
> 
> Is that about right ?
> 
> Would it be possible for vgscan to read a "hints" file consisting of <vg>/<lv> 
> and minor device number pairs ?
> 
> As each <vg>/<lv> is found, if it's in the file, the nominated minor device id 
> is used; if it's not found, then the next minor device id which is not listed 
> in the file is used.
> 
> [[ I use devfs, so using existing data in /dev/ would not help -- but I think 
> it would do no harm to use that data by default ]]
> 

I thought Heinz had fixed this in 1.0.1, what version are you using (tools &
kernel)?

patrick




[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]