All of lore.kernel.org
 help / color / mirror / Atom feed
From: Juan Orti Alcaine <j.orti.alcaine@gmail.com>
To: Roman Mamedov <rm@romanrm.net>
Cc: Marco Lorenzo Crociani <marcoc@prismatelecomtesting.com>,
	Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: mount time for big filesystems
Date: Fri, 1 Sep 2017 15:52:06 +0200	[thread overview]
Message-ID: <CAC+fKQXozVX4OsKOVxPEdRPkO=5iakEJenaxLHoaQ4FieSUmLA@mail.gmail.com> (raw)
In-Reply-To: <20170831163656.6be88191@natsu>

2017-08-31 13:36 GMT+02:00 Roman Mamedov <rm@romanrm.net>:
> If you could implement SSD caching in front of your FS (such as lvmcache or
> bcache), that would work wonders for performance in general, and especially
> for mount times. I have seen amazing results with lvmcache (of just 32 GB) for
> a 14 TB FS.

I'm thinking about adding a SSD for my 4 disks RAID1 filesystem, but I
have doubts about how to correctly do it in a multidevice filesystem.

I guess I should make 4 partitions on the SSD and pair them with my
backing devices, then create the btrfs on top of bcache0, bcache1,...
is this the right way to do it?

  parent reply	other threads:[~2017-09-01 13:52 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-31 10:43 mount time for big filesystems Marco Lorenzo Crociani
2017-08-31 11:00 ` Hans van Kranenburg
2017-08-31 11:22   ` Austin S. Hemmelgarn
2017-08-31 11:36 ` Roman Mamedov
2017-08-31 11:45   ` Austin S. Hemmelgarn
2017-08-31 12:16     ` Roman Mamedov
2017-08-31 14:13   ` Qu Wenruo
2017-09-01 13:52   ` Juan Orti Alcaine [this message]
2017-09-01 13:59     ` Austin S. Hemmelgarn
     [not found]       ` <CAC+fKQWFbdF6b3jGO_6hG_pNNzKobBYMeSNyEi5XRCf5YKa81Q@mail.gmail.com>
2017-09-01 15:20         ` Austin S. Hemmelgarn
2017-09-01 22:41           ` Dan Merillat

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAC+fKQXozVX4OsKOVxPEdRPkO=5iakEJenaxLHoaQ4FieSUmLA@mail.gmail.com' \
    --to=j.orti.alcaine@gmail.com \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=marcoc@prismatelecomtesting.com \
    --cc=rm@romanrm.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.