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Re: [linux-lvm] Suggested Kernel and LVM version for production storage





Alasdair G Kergon wrote:

On Sun, Aug 29, 2004 at 11:37:06AM +0300, Yedidia Klein wrote:


Sometimes I'm getting the following errors, and get all my LVM FileSystem Blocked .. (mean I can't access the files on these partitions and have to reboot for getting access again)





Aug 26 01:00:02 nazir kernel: device-mapper: Unable to allocate hash table space


i.e. There wasn't enough memory available to set up the snapshot. What sizes: How big is the LV & snapshot?

main partition is 500GB and I've two snapshots, weekly that is 100G and daily that is 60G


What chunk size? [Try changing.]


chunk is 8.00 KB (what is the suggested value ??)

Is there just one snapshot?


as I wrote there are two..

Check your memory usage.


my hardware memory is almost full 860/1000, but the swap isn't that used (it's now 3.3/2000) do the device mapper need more real mem ?? does it worth to increase the swap ?

tnx,

--Yedidia

Alasdair




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