All of lore.kernel.org
 help / color / mirror / Atom feed
From: Mathijs Kwik <mathijs@bluescreen303.nl>
To: linux-lvm@redhat.com
Subject: [linux-lvm] Cpy%Sync column - high disk activity after reboots
Date: Sun, 31 May 2015 16:51:21 +0200	[thread overview]
Message-ID: <877frou7fa.fsf@bluescreen303.nl> (raw)

Hi all,

I'm trying lvmcache and it seems to work ok. However, after every
reboot, I notice quite a long period of disk activity. lvs gives me this
output:

% lvs
  LV            VG       Attr       LSize   Pool    Origin                Data%  Meta%  Move Log Cpy%Sync Convert
  btrfs-spinner bluebook Cwi-aoC--- 582,19g [cache] [btrfs-spinner_corig] 70,11  11,34           82,55           

The % gets lower over time and when it reaches 0 the disk activity goes
back to normal.

Is this to be expected/normal?
It seems to me the entire cache is checked as if it wasn't cleanly
closed on shutdown. I'm currently using writethrough and would like to
make sure everything is ok before enabling writeback.

Thanks,
Mathijs

             reply	other threads:[~2015-05-31 14:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-31 14:51 Mathijs Kwik [this message]
2015-06-01  8:58 ` [linux-lvm] Cpy%Sync column - high disk activity after reboots Zdenek Kabelac
  -- strict thread matches above, loose matches on Subject: below --
2015-06-02  7:35 Mathijs Kwik
2015-06-02 11:58 ` Zdenek Kabelac

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=877frou7fa.fsf@bluescreen303.nl \
    --to=mathijs@bluescreen303.nl \
    --cc=linux-lvm@redhat.com \
    /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.