Re: Tuning boot time of my server

From	Michael Biebl <biebl@debian.org>
Newsgroups	linux.debian.user
Subject	Re: Tuning boot time of my server
Date	2017-04-08 21:40 +0200
Message-ID	<tu4nf-13d-9@gated-at.bofh.it> (permalink)
References	<tu4dz-ZU-3@gated-at.bofh.it>
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Am 08.04.2017 um 21:15 schrieb Markus Grunwald:
> Hello,
> 
> just for sports, I tried to minimise the boot time of my server, which
> is running systemd. I have one mayor blocker:
> 
>  % systemd-analyze blame
>          10.746s srv-share-backup.mount
>          10.258s nfs-kernel-server.service
>           3.311s mysql.service
>           1.444s apache2.service
>           1.344s epgd.service
>           1.012s privoxy.service
> 
> 
> /srv/share/backup lives on a Western Digital WD RED, and this device
> takes ages to spin up. So I'd rather /not/ spin this disk, if it is
> not necessary - which it isn't. That's why I've set up an automount
> unit for it.
> Now I don't understand why it is mounted on booting. /srv/share/backup
> is exported via NFS, which might be the reason for the slow
> nfs-kernel-server.service. But I have other exports on WD REDs as
> well, and they are not mounted while booting.
> 
> So why is srv-share-backup.mount started at boot-time? It's not wanted
> or directly enabled:

Most likely something is accessing the share, which trigger the mount
request. One possible candidate could be nfs-kernel-server.
If you stop exporting the share via NFS, is it still (auto)mounted?


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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Tuning boot time of my server Markus Grunwald <markus@the-grue.de> - 2017-04-08 21:30 +0200
  Re: Tuning boot time of my server Erwan David <erwan@rail.eu.org> - 2017-04-08 21:30 +0200
    Re: Tuning boot time of my server Markus Grunwald <markus@the-grue.de> - 2017-04-08 21:40 +0200
  Re: Tuning boot time of my server Michael Biebl <biebl@debian.org> - 2017-04-08 21:40 +0200

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