is it safe to change BTRFS_STRIPE_LEN?

2014-05-24 Thread john terragon
Hi. I'm playing around with (software) raid0 on SSDs and since I remember I read somewhere that intel recommends 128K stripe size for HDD arrays but only 16K stripe size for SSD arrays, I wanted to see how a small(er) stripe size would work on my system. Obviously with btrfs on top of md-raid I

Re: is it safe to change BTRFS_STRIPE_LEN?

2014-05-24 Thread Austin S Hemmelgarn
On 05/24/2014 12:44 PM, john terragon wrote: Hi. I'm playing around with (software) raid0 on SSDs and since I remember I read somewhere that intel recommends 128K stripe size for HDD arrays but only 16K stripe size for SSD arrays, I wanted to see how a small(er) stripe size would work on my

Re: is it safe to change BTRFS_STRIPE_LEN?

2014-05-24 Thread john terragon
Yes the btrfs-tools would have to be recompiled too ( BTRFS_STRIPE_LEN is defined in a volumes.h in there too). And yes, kernel and tools would certainly kill any raid0 btrfs fs and maybe any other multidevice kind of setting. On Sat, May 24, 2014 at 9:07 PM, Austin S Hemmelgarn