Converting to a volume to NSS

[bopritchard]

i've got a 80g volume that takes 45 minutes to mount everytime i need to restart my server...i've been told that i should convert this to nss...also been told that there is no conversion utility available prior to ver6...but than i can blow away the volume...recreate it as nss and then restore the data back to it...

any thoughts or experience on this

 

[TheLad]

How much memory has your server got? You may decrease the volume mount time by simply upgrading the memory in the server. As an example, I upgraded a server from 768Mb of RAM to 2.5Gb of RAM and the 150Gb traditional volume (half of which is used) mounts in 8 minutes.

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"It's true, its damn true!"
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[bopritchard]

512

 

[TheLad]

I would suggest looking at putting at least 2Gb into your server. The more memory, the faster the server runs, the quicker the volume will mount.

Below is an extract from Novell's website:

"Volumes take more memory to mount than they require after being mounted because the mounting process performs consistency checks (for example, the duplicate copies of all the tables are checked). Volumes and directory entries grow dynamically. Thus, if your server is using most of the RAM (file cache buffers are close to 20% of the memory) and you dismount a volume, you might not be able to remount the volume unless additional memory is available. Each additional name space support that you add to a volume increases the size of the file allocation tables and directory entry tables. Adding name space support can cause the tables to grow so large that the server does not have enough RAM to mount the volume."

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"It's true, its damn true!"
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[terry712]

would agree to up ram

would also say i prefer the nss option - it's would load this in a second

for the backup and restore - this isnt a problem
but you must check whether your original and current volume is compressed or not. also whether your new nss would be compressed ? - you cannot retsore compresses data to an uncompressed disk

the vcu that you are referring too would need additional space to convert anyway as it needs the equivalent disk space available as it really does a convertion in moving the data