Re: [gentoo-user] which filesystem is best for raid 0?
On 8/12/20 5:56 PM, Adam Carter wrote: Depends on your use case, ... so what you use will depend on speed/reliability trade off. There are some specific uses cases where speed is desired at least an order of magnitude more than reliability. ext2 is less reliable due to it missing the journal Some cases, that's an advantage. Consider a use case where having the files is a benefit, but not having the files only means that they are fetched over the network. Like a caching proxy's on disk cache. If the caching proxy looses it's disk cache, so what. It re-downloads the files and moves on with life. RAW /speed/ is more important in these types of limited use cases. As such, the journal is actually a disadvantage /because/ it slows things down somewhat. -- Grant. . . . unix || die
Re: [gentoo-user] which filesystem is best for raid 0?
On Thu, Aug 13, 2020 at 5:29 AM Grant Taylor < gtay...@gentoo.tnetconsulting.net> wrote: > On 8/12/20 11:53 AM, Никита Степанов wrote: > > which filesystem is best for raid 0? > Performance wise, ext4 and XFS lead most benchmarks for non-raid. XFS seems best for raid1, so I imagine either of those would be best for raid0. Depends on your use case, but ext2 (and to a much lesser degree btrfs) will be less reliable than ext4 or XFS so what you use will depend on speed/reliability trade off. ext2 is less reliable due to it missing the journal, btrfs due to being less mature (IMO, this is a weakly held belief). Also btrfs tends to be slower than ext4 and XFS for most operations, sometimes by a large margin. https://www.phoronix.com/scan.php?page=article=linux-50-filesystems=2
[gentoo-user] which filesystem is best for raid 0?
which filesystem is best for raid 0?
Re: [gentoo-user] which filesystem is best for raid 0?
On 8/12/20 11:53 AM, Никита Степанов wrote: which filesystem is best for raid 0? I'm guessing that you're after speed more than anything else since you're talking about RAID 0. As such, I'd suggest avoiding a journaling file system as that's probably unnecessary overhead. I'd consider ext2 for something like a news spool where performance is more important and the data is somewhat ephemeral. Likewise for a caching proxy spool. -- Grant. . . . unix || die
Re: [gentoo-user] which filesystem is best for raid 0?
On 12/08/2020 18:53, Никита Степанов wrote: which filesystem is best for raid 0? DON'T. https://raid.wiki.kernel.org/index.php/Linux_Raid If you're thinking about raid 0, I'll suggest using btrfs instead. Just don't forget that, by default, btrfs mirrors the metadata (I think that means the directories), but does not mirror the data. Losing a disk means losing all the files that are on it. What further thoughts do you have? WHY do you want a raid 0? It's not recommended, precisely because losing a drive means a massively increased risk of losing everything. Cheers, Wol
