zLinux backup solutions
To get a clean backup of our zLinux servers we currently shutdown the zLinux server and do full volume backups of its disks. Is there some other method / product available that we could use to get a clean backup without having to take an outage on the zLinux server? Thanks, Neal -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: zLinux backup solutions
Yes - a logical backup solution -- TSM is an IBM solutionyou need a backup client which can read your filesystems and send them to a server for archiving/retrieval A physical backup of the hard drives will always require a quiesced system for a clean backup. Scott Rohling On Wed, Nov 9, 2016 at 9:15 AM, Neal Scheffler wrote: > To get a clean backup of our zLinux servers we currently shutdown the > zLinux server and do full volume backups of its disks. > > Is there some other method / product available that we could use to get a > clean backup without having to take an outage on the zLinux server? > > Thanks, > Neal > > -- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > -- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: zLinux backup solutions
I should have added that we will do a physical backup of zLinux in some cases without quiescing - but it is always supplemented with a logical backup.. The physical restore will normally give you a working zLinux ... any corrupted/missing/changed files can be restored via the logical backup to bring things 'up to date'. Scott Rohling On Wed, Nov 9, 2016 at 9:39 AM, Scott Rohling wrote: > Yes - a logical backup solution -- TSM is an IBM solutionyou > need a backup client which can read your filesystems and send them to a > server for archiving/retrieval > > A physical backup of the hard drives will always require a quiesced system > for a clean backup. > > Scott Rohling > > On Wed, Nov 9, 2016 at 9:15 AM, Neal Scheffler wrote: > >> To get a clean backup of our zLinux servers we currently shutdown the >> zLinux server and do full volume backups of its disks. >> >> Is there some other method / product available that we could use to get a >> clean backup without having to take an outage on the zLinux server? >> >> Thanks, >> Neal >> >> -- >> For LINUX-390 subscribe / signoff / archive access instructions, >> send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or >> visit >> http://www.marist.edu/htbin/wlvindex?LINUX-390 >> -- >> For more information on Linux on System z, visit >> http://wiki.linuxvm.org/ >> > > -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: zLinux backup solutions
[disclaimer: FCP rather than FICON point of view assumed in the following so there might be differences] If your workload could live with an atomically consistent but "dirty" disk content, you could use online block device snapshot technologies. Maybe inside Linux with LVM snapshot. Storage servers can also do this for you without Linux CPU cycles and even more so they can support snapshot consistency groups which you need if some filesystem (or raw RDBMS table space) spans multiple volumes (such as with LVM striping). There might be backup software solutions exploiting above, but that's beyond my knowledge. On restarting your workload (such as Linux boot) after a restore of such snapshot content, the workload will see some consistent atomic disk content, but the content is not clean as in closed application files or as in unmounted filesystems. So the application/filesystem (or whatever read/writes from/to disks) needs to cope with that, e.g. by replaying a journal. I suppose if you not only collect disk snapshots but before doing so suspend the Linux to disk (potentially with hypervisor support), you could resume such Linux with those disk snapshots and apps/fs would not even notice (because they slept and then wake up with the old state as if nothing happened inbetween). Suspending is of course already some kind of disruption or temporary outage taking some time as opposed to what I mentioned above. On 11/09/2016 06:42 PM, Scott Rohling wrote: I should have added that we will do a physical backup of zLinux in some cases without quiescing - but it is always supplemented with a logical backup.. The physical restore will normally give you a working zLinux ... any corrupted/missing/changed files can be restored via the logical backup to bring things 'up to date'. Scott Rohling On Wed, Nov 9, 2016 at 9:39 AM, Scott Rohling wrote: Yes - a logical backup solution -- TSM is an IBM solutionyou need a backup client which can read your filesystems and send them to a server for archiving/retrieval A physical backup of the hard drives will always require a quiesced system for a clean backup. Scott Rohling On Wed, Nov 9, 2016 at 9:15 AM, Neal Scheffler wrote: To get a clean backup of our zLinux servers we currently shutdown the zLinux server and do full volume backups of its disks. Is there some other method / product available that we could use to get a clean backup without having to take an outage on the zLinux server? Thanks, Neal -- Mit freundlichen Grüßen / Kind regards Steffen Maier Linux on z Systems Development IBM Deutschland Research & Development GmbH Vorsitzende des Aufsichtsrats: Martina Koederitz Geschaeftsfuehrung: Dirk Wittkopp Sitz der Gesellschaft: Boeblingen Registergericht: Amtsgericht Stuttgart, HRB 243294 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: zLinux backup solutions
There are other vendors as well Symantec Netbackup Innovation Data Processings FDR product. Perhaps you can use the same thing as what is used with your x86 servers? There may be more. -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Scott Rohling Sent: Wednesday, November 09, 2016 9:40 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: [LINUX-390] zLinux backup solutions Yes - a logical backup solution -- TSM is an IBM solutionyou need a backup client which can read your filesystems and send them to a server for archiving/retrieval A physical backup of the hard drives will always require a quiesced system for a clean backup. Scott Rohling On Wed, Nov 9, 2016 at 9:15 AM, Neal Scheffler wrote: > To get a clean backup of our zLinux servers we currently shutdown the > zLinux server and do full volume backups of its disks. > > Is there some other method / product available that we could use to > get a clean backup without having to take an outage on the zLinux server? > > Thanks, > Neal > > -- > For LINUX-390 subscribe / signoff / archive access instructions, send > email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > -- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Linux on z Systems: new documentation for SLES12 SP2
The following Linux on z Systems publications for SUSE Linux Enterprise Sever 12 SP2 are now available at IBM Knowledge Center and developerWorks: http://www.ibm.com/support/knowledgecenter/linuxonibm/liaaf/lnz_r_s122.html http://www.ibm.com/developerworks/linux/linux390/documentation_suse.html This document describes the device drivers available to SUSE Linux Enterprise Server 12 SP2 as a KVM guest for the control of z Systems devices and attachments. It also provides information on commands and parameters relevant to configuring Linux on z Systems as a KVM guest. This publication describes the device drivers and features available to SUSE Linux Enterprise Server 12 SP2 for the control of z Systems devices and attachments. It also provides information on commands and parameters relevant to configuring Linux on z Systems. This message reference document contains the messages that IBM z Systems specific kernel modules issue on the console and write to the syslog. Dorothea Matthaeus Linux on z Systems Information Development IBM Deutschland Research and Development GmbH -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
