Re: [zfs-discuss] ZFS Compression algorithms - Project Proposal

2007-07-08 Thread Dave Johnson
"roland" <[EMAIL PROTECTED]> wrote: > > there is also no filesystem based approach in compressing/decompressing a > > whole filesystem. you can have 499gb of data on a 500gb partition - and if > > you need some more space you would think turning on compression on that fs > > would solve your pro

Re: [zfs-discuss] zfs space efficiency

2007-07-08 Thread Dave Johnson
[EMAIL PROTECTED] wrote:>> -=dave wrote:> > one other thing... the checksums for all files to send *could* be checked first in batch and known unique blocks prioritized and sent first, then the possibly duplicative data sent afterwards to be verified a dupe, thereby decreasing the possible data

[zfs-discuss] Benchmarking nfs on zfs vs. other products?

2007-07-08 Thread Peter C. Norton
List, Sorry if this has been done before - I'm sure I'm not the only person interested in this, but I haven't found anything with the searches I've done. I'm looking to compare nfs performance between nfs on zfs and a lower-end netapp filer. It seems like the only way to do this is to measure thi

Re: [zfs-discuss] How to take advantage of PSARC 2007/171: ZFS Separate Intent Log

2007-07-08 Thread Torrey McMahon
Bryan Cantrill wrote: > On Tue, Jul 03, 2007 at 10:26:20AM -0500, Albert Chin wrote: > >> PSARC 2007/171 will be available in b68. Any documentation anywhere on >> how to take advantage of it? >> >> Some of the Sun storage arrays contain NVRAM. It would be really nice >> if the array NVRAM would

Re: [zfs-discuss] ZFS Performance as a function of Disk Slice

2007-07-08 Thread Scott Lovenberg
Thank you for your quick responses! I was unable to get back to this thread on account of being stuck on a motorcycle yesterday (still can't feel my legs!). I think the KISS principle applies to 95% of computing (keeping in mind that 90% of everything is crap ;)). I've read Relling's blogs wi

Re: [zfs-discuss] ZFS Compression algorithms - Project Proposal

2007-07-08 Thread MC
> zfs tries to compress a datablock and if that isn`t compressible enough, it > doesn`t store it compressed. That feature was pointed out to me off-list, and it makes great sense. I had not heard about that before this thread. This message posted from opensolaris.org ___

Re: [zfs-discuss] ZFS Compression algorithms - Project Proposal

2007-07-08 Thread roland
>One thing ZFS is missing is the ability to select which files to compress. yes. there is also no filesystem based approach in compressing/decompressing a whole filesystem. you can have 499gb of data on a 500gb partition - and if you need some more space you would think turning on compression on