Using ZFS to Fight Data Rot, the Silent Killer

7 More Discussions You Might Find Interesting

1. Solaris

Zfs send & receive with encryption - how to retrieve data?

Good morning everyone, I'm looking for some help to retrieve data in a scenario where I might have made a big mistake. I'm hoping to understand what I did wrong. My system is made of two Solaris 11 Express servers (old free version for evaluation). The first if for data and the second is...

2. Cybersecurity

Fight against Spam in vBulletin?

Hi, I have a problem. For a few months ago I set up a vBulletin Forum. After 2 Days there were 100 people online on the same time and tried to register. (Bots). Sometime one of the bots suceeded and then he spams all Forums with advertisment in different languages. What can I do against...

3. Emergency UNIX and Linux Support

Getting data from ZFS.

Hi all, A customer has a very active ZFS partitionon their production system, I need to get a copy of the data under one directory at a specific point in time. Is it possible to do this with the ZFS snapshot/clone tools, (and what commands should be used to capture the info I require for...

4. UNIX for Advanced & Expert Users

OOM KIller INVOKE

Hi I have written a code that will exhaust the memory completely by allocating it and not freeing it. The OOM killer as expected in invoked and it killed a few high memory using processes and their childs. But after that, though the system is not getting hung, it is not printing any msgs in...

5. Solaris

Copy data from zfs datasets

I 've few data sets in my zfs pool which has been exported to the non global zones and i want to copy data on those datasets/file systems to my datasets in new pool mounted on global zone, how can i do that ?

6. Filesystems, Disks and Memory

Can ZFS Save my Data

Hello, Our RAID and server recently crashed and we are trying to recover our data. The problem appears to be that the Veritas File System/Logical Volume Manger became corrupt on our RAID. We are down to our last option, which is to run some Veritas commands that "may" result in data loss. ...

7. Shell Programming and Scripting

help rsh killer

hi everyone , i have a rsh problem , some of the users letf a lot of rsh sesions opened , i need a script that chek with a "ps -fea | grep rsh" and kill every sesion that not start today . for example root 26770 26767 0 Apr 17 ? 0:00 rsh c-108 find / -type d -mtime +1 -name...

LEARN ABOUT CENTOS

amzfs-sendrecv

AMZFS-SENDRECV(8)					  System Administration Commands					 AMZFS-SENDRECV(8)

NAME

       amzfs-sendrecv - Amanda script to create zfs sendrecv

DESCRIPTION

       amzfs-sendrecv is an Amanda application implementing the Application API. It should not be run by users directly. It create a zfs snapshot
       of the filesystem and backup the snapshot with 'zfs send'. Snapshot are kept after the backup is done, this increase the disk space use on
       the client but it is neccesary to be able do to incremental backup. If you want only full backup, you can disable this feature by setting
       the KEEP-SNAPSHOT property to 'NO'. Only the restoration of the complete backup is allowed, it is impossible to restore a single file.

       The application is run as the amanda user, it must have many zfs priviledge:

	   zfs allow -ldu AMANDA_USER mount,create,rename,snapshot,destroy,send,receive FILESYSTEM

       Some system doesn't have "zfs allow", but you can give the Amanda backup user the rights to manipulate ZFS filesystems by using the
       following command:

       usermod -P "ZFS File System Management,ZFS Storage Management" AMANDA_USER
       This will require that your run zfs under pfexec, set the PFEXEC property to YES.

       The format of the diskdevice in the disklist (DLE) must be one of:

       Desciption	       Example
       ----------	       -------
       Mountpoint	       /data
       ZFS pool name	       datapool
       ZFS filesystem	       datapool/database
       ZFS logical volume      datapool/dbvol

       The filesystem doesn't need to be mounted.

PROPERTIES

       This section lists the properties that control amzfs-sendrecv's functionality. See amanda-applications(7) for information on the
       Application API, application configuration.

       DF-PATH

	   Path to the 'df' binary, search in $PATH by default.

       KEEP-SNAPSHOT

	   If "YES" (the default), snapshot are kept after the backup, if set to "NO" then snapshot are no kept and incremental backup will fail.

       ZFS-PATH

	   Path to the 'zfs' binary, search in $PATH by default.

       PFEXEC-PATH

	   Path to the 'pfexec' binary, search in $PATH by default.

       PFEXEC

	   If "NO" (the default), pfexec is not used, if set to "YES" then pfexec is used.

EXAMPLE

       In this example, a dumptype is defined to use amzfs-sendrecv application to backup a zfs filesystem.
	define application-tool amzfs_sendrecv {
	  comment "amzfs-sendrecv"
	  plugin "amzfs-sendrecv"
	  #property "DF-PATH"  "/usr/sbin/df"
	  #property "KEEP-SNAPSHOT" "YES"
	  #property "ZFS-PATH" "/usr/sbin/zfs"
	  #property "PFEXEC-PATH" "/usr/sbin/pfexec"
	  #property "PFEXEC" "NO"
	}

	define dumptype user-zfs-sendrecv {
	  program "APPLICATION"
	  application "amzfs_sendrecv"
	}

SEE ALSO

       amanda(8), amanda.conf(5), amanda-client.conf(5), amanda-applications(7)

       The Amanda Wiki: : http://wiki.zmanda.com/

AUTHOR

       Jean-Louis Martineau <martineau@zmanda.com>
	   Zmanda, Inc. (http://www.zmanda.com)

Amanda 3.3.3							    01/10/2013							 AMZFS-SENDRECV(8)

Solaris BigAdmin RSS