Hi Edward,
I am running an older version, it's 7.0.3
I think there was something a little weird, as shown here:
# cat a/e/c/.snapshot/vol0_deleteme/d.txt
cat: a/e/c/.snapshot/vol0_deleteme/d.txt: Not a directory
# cat a/e/c/.snapshot/vol0_deleteme/d.txt
whee
Running that 'find' a second time seems to have what you'd expect:
# find a/.snapshot
a/.snapshot/vol0_deleteme
a/.snapshot/vol0_deleteme/b
a/.snapshot/vol0_deleteme/b/c
a/.snapshot/vol0_deleteme/b/c/d.txt
I suspect the individual .snapshot directories don't really "exist"
until they are accessed the first time. The .snapshot in the root of
the volume is always there and has what you would expect:
# cd .snapshot
# tree
`-- vol0_deleteme
`-- a
`-- b
`-- c
`-- d.txt
Jonathan
On Apr 23, 2010, at 6:15 PM, Edward Ned Harvey wrote:
> Did you do a "mv" somewhere in there? Or just forget to paste it?
>
> I'm still biased to think it's probably fine. Although Jonathan had
> one
> test which produced a bad result, the assumption was that it would
> have been
> good. And given that Adam had a good result, it's probably just
> something
> weird and specific to something that Jonathan unfortunately has
> right now
> ...
>
> Still, Tom, there's no harm in actually doing the test, if you'd
> care to
> repeat it or paste it or whatever. Cuz it's not shown below.
>
>
>> -----Original Message-----
>> From: Tom Limoncelli [mailto:[email protected]]
>> Sent: Friday, April 23, 2010 5:08 PM
>> To: Adam Levin
>> Cc: Edward Ned Harvey; [email protected]
>> Subject: Re: [lopsa-tech] Anybody with a netapp?
>>
>> t...@goodfor:~$ mkdir tmp/snaptest
>> t...@goodfor:~$ cd tmp/snaptest/
>> t...@goodfor:~/tmp/snaptest$ mkdir http_root
>> t...@goodfor:~/tmp/snaptest$ mkdir http_root/current
>> t...@goodfor:~/tmp/snaptest$ mkdir http_root/current/bin
>> t...@goodfor:~/tmp/snaptest$ echo "stable" >
>> http_root/current/bin/myapp
>> t...@goodfor:~/tmp/snaptest$ mkdir http_root/experimental
>> t...@goodfor:~/tmp/snaptest$ mkdir http_root/experimental/bin
>> t...@goodfor:~/tmp/snaptest$ echo "unstable" >
>> http_root/experimental/bin/myapp
>>
>> t...@goodfor:~/tmp/snaptest$ find .snapshot/hourly.0
>> .snapshot/hourly.0
>> .snapshot/hourly.0/http_root
>> .snapshot/hourly.0/http_root/current
>> .snapshot/hourly.0/http_root/current/bin
>> .snapshot/hourly.0/http_root/current/bin/myapp
>> .snapshot/hourly.0/http_root/experimental
>> .snapshot/hourly.0/http_root/experimental/bin
>> .snapshot/hourly.0/http_root/experimental/bin/myapp
>>
>> (OH NO! My new version is unstable! I want to figure it out and go
>> back
>> to
>> my hourly backup!)
>>
>> You just need to start one directory up from where you did the "mv":
>>
>> t...@goodfor:~/tmp/snaptest$ cat
>> http_root/.snapshot/hourly.0/experimental/bin/myapp
>> unstable
>> t...@goodfor:~/tmp/snaptest$ cat
>> http_root/.snapshot/hourly.0/current/bin/myapp
>> stable
>>
>> netapp snapshots give you your data in the same place that zfs gives
>> it to you PLUS additional paths. You said that zfs puts it in the
>> right place. That means that netapp is putting it in the right place
>> too... with additional places for your data restoration convenience.
>>
>> Tom
>
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