Displaying 20 results from an estimated 3000 matches similar to: "Daily snapshots as replacement for incremental backups"
2017 Apr 20
1
JavaMail setFlags on readonly folder
Hi,
I'm facing a strange issue using JavaMail, where Dovecot let me open "READ_WRITE" a folder with readonly ACLs (same happens on other imap servers), but then doesn't issue any error when if try to setFlags(...) on that folder.
The result is that the code thinks the folder marked the messages (deleted, flagged, etc), while it actually did not.
Just refreshing the folder from
2017 Jun 01
2
Possible RENAME bug
Hello, I'm having some trouble working on a webapp managing the imap tree on Dovecot.
The same doesn't happen on other imap servers (e.g. Cyrus).
Looks like if I receive shared folders from another user, and try to rename a folder in it, the rename command returns "ok", then if you list the new folder name, it isn't there.
Looks like you've lost all the original folder
2023 Jan 26
2
User shares do not appear anymore
Hi, I have an Ubuntu system with samba 4 that did work perfectly until this morning.
Normal shares in smb.conf appeared as always, while user shares included with %U did not anymore.
This is the global part of smb.conf:
? ? ? ? security = user
? ? ? ? username map = /etc/samba/smbusers
? ? ? ? include = /etc/samba/smb.conf.%U
? ? ? ? include = /etc/samba/smb.conf.%m
?
There are then various
2010 May 01
2
ZFS on ZFS based storage?
I''m trying to guess what is the best practice in this scenario:
- let''s say I have a zfs based storage (let''s say nexenta) that has it zfs pools and volumes shared as iScsi raw devices
- let''s say I have another server running xvm or virtualbox connected to the storage
- let''s say one of the virtual guests is OpenSolaris
My question is:
- is it correct
2015 Oct 28
2
Dovecot, JavaMail, UIDs and Message Numbers
Hi,
new to this list, so a little prelude to my issue with Dovecot.
We have been using JavaMail against Cyrus for ages, and developed Webtop, a huge Java web collaboration application running on them in production in various installations for all this time.
Recently we had to run the same software against Dovecot pre-existing accounts running on Nethesis NethServer solution.
After some time of
2012 Jul 30
10
encfs on top of zfs
Dear ZFS-Users,
I want to switch to ZFS, but still want to encrypt my data. Native
Encryption for ZFS was added in "ZFS Pool Version Number
30<http://en.wikipedia.org/wiki/ZFS#Release_history>",
but I''m using ZFS on FreeBSD with Version 28. My question is how would
encfs (fuse encryption) affect zfs specific features like data Integrity
and deduplication?
Regards
2008 Mar 15
3
Incremental backups?
So I thought I'd get a head start for next week -
I have a low-power Linux box that has a few samba shares mounted, and
limited hard disk space. This box is connected to a tape library via
SCSI card.
I want to find the best way to create a full, then incremental backup of
the samba mounts, directly to tape. Some of the samba mounts are
appliances that cannot run any special
2010 Jan 27
13
zfs destroy hangs machine if snapshot exists- workaround found
Hi,
I was suffering for weeks from the following problem:
a zfs dataset contained an automatic snapshot (monthly) that used 2.8 TB of data. The dataset was deprecated, so I chose to destroy it after I had deleted some files; eventually it was completely blank besides the snapshot that still locked 2.8 TB on the pool.
''zfs destroy -r pool/dataset''
hung the machine within seconds
2010 Sep 25
4
dedup testing?
Hi all
Has anyone done any testing with dedup with OI? On opensolaris there is a nifty "feature" that allows the system to hang for hours or days if attempting to delete a dataset on a deduped pool. This is said to be fixed, but I haven''t seen that myself, so I''m just wondering...
I''ll get a 10TB test box released for testing OI in a few weeks, but before
2011 Apr 28
4
Finding where dedup''d files are
Is there an easy way to find out what datasets have dedup''d data in
them. Even better would be to discover which files in a particular
dataset are dedup''d.
I ran
# zdb -DDDD
which gave output like:
index 1055c9f21af63 refcnt 2 single DVA[0]=<0:1e274ec3000:2ac00:STD:1>
[L0 deduplicated block] sha256 uncompressed LE contiguous unique
unencrypted 1-copy size=20000L/20000P
2003 Dec 05
0
[Linux-ME] daily backup (incremental backup ) - SOLVED
Dear Manoj,
Have found out the mistake in my script.
One must create directory if he/she wants to move old
files to backup directory. In my script I was not
creating any new backup-dir(datewise), therefore
despite of have -b --backup-dir flags it was not
working. This means
rsync can only create automatically new direcotry for
destination but not backup-dir !!!!
Am I correct?
Bipin
---
2003 Nov 19
1
daily back (incremental backup )
Hello,
I have Novell Netware File server. Which is mounted
as /mnt/novell on one of my Linux m/c.
I want to take backup of Novell Server to my Linux
m/c. I need everyday backup of Novell server to be
taken on Linux m/c. I don't want full backup every
day but I need an incremental backup. I do not want to
delete any old directory or files.
I have taken script from rsync examples, and
2011 Jan 18
4
Zpool Import Hanging
Hi All,
I believe this has been asked before, but I wasn?t able to find too much
information about the subject. Long story short, I was moving data around on
a storage zpool of mine and a zfs destroy <filesystem> hung (or so I
thought). This pool had dedup turned on at times while imported as well;
it?s running on a Nexenta Core 3.0.1 box (snv_134f).
The first time the machine was
2018 Nov 03
1
reading old dump backups from 2009
> On Nov 3, 2018, at 06:26, Pete Biggs <pete at biggs.org.uk> wrote:
> I don't think dump has changed anything in 20 years or so! And I
> certainly can't see it changing such that it can't read old files -
> that is, sort of, it's raison d'etre.
A bit off topic but...
Funny story, at a previous job, my boss was able to extract the data off tapes made in the
2009 Dec 30
3
what happens to the deduptable (DDT) when you set dedup=off ???
I tried the deduplication feature but the performance of my fileserver
dived from writing 50MB/s via CIFS to 4MB/s.
what happens to the deduped blocks when you set dedup=off?
are they written back to disk?
is the deduptable deleted or is it still there?
thanks
--
This message posted from opensolaris.org
2010 May 15
7
Unable to Destroy One Particular Snapshot
Howdy All,
I''ve a bit of a strange problem here. I have a filesystem with one snapshot that simply refuses to be destroyed. The snapshots just prior to it and just after it were destroyed without problem. While running the zfs destroy command on this particular snapshot, the server becomes more-or-less hung. It''s pingable but will not open a new shell (local or via ssh) however
2010 Feb 10
3
LTO tape drives and Bacula for Backups?
How does everyone feel about using Quantum LTO 3 and 4 tapes
with Bacula for backing up both the VM's, Host, as well as from within
the VM's.
What are know good backup solutions? Can anyone name specific tape
drives / software that is working.
Lee
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2015 May 06
2
Backup PC or other solution
On Wed, May 6, 2015 2:46 pm, m.roth at 5-cent.us wrote:
> Alessandro Baggi wrote:
>> I list,
>> I'm new with backup ops and I'm searching a good system to accomplish
>> this
>> work. I know that on centos there are bacula and amanda but they are
>> too
>> tape oriented. Another is that they are very powerfull but more complex.
>> I
>>
2013 May 05
10
Possible to dedpulicate read-only snapshots for space-efficient backups
Hey list,
I wonder if it is possible to deduplicate read-only snapshots.
Background:
I''m using an bash/rsync script[1] to backup my whole system on a nightly
basis to an attached USB3 drive into a scratch area, then take a snapshot of
this area. I''d like to have these snapshots immutable, so they should be
read-only.
Since rsync won''t discover moved files but
2011 Jan 05
52
Offline Deduplication for Btrfs
Here are patches to do offline deduplication for Btrfs. It works well for the
cases it''s expected to, I''m looking for feedback on the ioctl interface and
such, I''m well aware there are missing features for the userspace app (like
being able to set a different blocksize). If this interface is acceptable I
will flesh out the userspace app a little more, but I believe the