[OpenAFS] Re: backup strategy

[Mattias Pantzare]

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On Tue, Nov 25, 2014 at 9:19 PM, Kristen J. Webb <kwebb@teradactyl.com>
wrote:

> I also took a look at the tsmafs module and had a couple technical
> questions about how it works.
>
>     1. What happens when you rename a directory (either a volume name or
> within a volume)?  Does the entire directory need to get backed up again?
>

The entire directory/volume will be backed up again. But you can change
where the volume is mounted.


>     2. While the use of hard links is limited in AFS, will tsmafs preserve
> those links on restore?
>

No. We currently use the normal TSM commands to restore files and those
knows nothing about AFS, so I don't think so. I have not checked if we
store metadata to be able to do that if we write a dedicated client.

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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Tue, Nov 25, 2014 at 9:19 PM, Kristen J. Webb <span dir=3D"ltr">&lt;=
<a href=3D"mailto:kwebb@teradactyl.com" target=3D"_blank">kwebb@teradactyl.=
com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"mar=
gin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I also took a l=
ook at the tsmafs module and had a couple technical questions about how it =
works.<br>
<br>
=C2=A0 =C2=A0 1. What happens when you rename a directory (either a volume =
name or within a volume)?=C2=A0 Does the entire directory need to get backe=
d up again?<br></blockquote><div><br></div><div>The entire directory/volume=
 will be backed up again. But you can change where the volume is mounted.</=
div><div><br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
=C2=A0 =C2=A0 2. While the use of hard links is limited in AFS, will tsmafs=
 preserve those links on restore?<br></blockquote><div><br></div><div>No. W=
e currently use the normal TSM commands to restore files and those knows no=
thing about AFS, so I don&#39;t think so. I have not checked if we store me=
tadata to be able to do that if we write a dedicated client.=C2=A0</div></d=
iv></div></div>

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