similar to: Reconstructing duplicate lvm

----- "Ben M." <centos at rivint.com> wrote: > Gack. I added an additional Raid1 pair to my machine just before I > planned to bring it over to the office and I did something dumb and > locked out. > > I have the pv's, vg's and lv's cleared. All I need to do is get on > root > and remove a line from fstab, but I can't get it out of read

Hi All, For quite some time I've used raid 1 as a means of providing a rollback mechanism for an upgrade (which I learned from others long ago). So essentially, before an upgrade you split the mirrors and upgrade one side or the other. If your upgrade goes well you sync one way, if your upgrade does not you sync the other (much hand waving and chanting going on, as its more complicated than

I am mirroring two drives during install, what's the best practice here for the swap partition? Maybe two separate lv's from independent vg's *not* mirrored for swap and the let the OS manage it? Boot and the / vg will be mirrored. Thanks! jlc

Il 20/04/2018 21:44, Jamie Lawrence ha scritto: > Hello, > > So I have a volume on a gluster install (3.12.5) on which sharding was enabled at some point recently. (Don't know how it happened, it may have been an accidental run of an old script.) So it has been happily sharding behind our backs and it shouldn't have. > > I'd like to turn sharding off and reverse the

I've been running into a reproducible problem when using default LVM volume group names to present block devices for virtual machines in KVM, and I'm wondering why it is happening. On dom0 I make a default VolGroup00 for the operating system. I make a second VolGroup01 for logical volumes that will be block devices for virtual systems. In VolGroup01, I make two lv's for one system:

> On Apr 23, 2018, at 10:49 AM, WK <wkmail at bneit.com> wrote: > > From some old May 2017 email. I asked the following: > "From the docs, I see you can identify the shards by the GFID > # getfattr -d -m. -e hex path_to_file > # ls /bricks/*/.shard -lh | grep GFID > > Is there a gluster tool/script that will recreate the file? > > or can you just sort

From some old May 2017 email. I asked the following: "From the docs, I see you can identify the shards by the GFID # getfattr -d -m. -e hex/path_to_file/ # ls /bricks/*/.shard -lh | grep /GFID Is there a gluster tool/script that will recreate the file? or can you just sort them sort them properly and then simply cat/copy+ them back together? cat shardGFID.1 .. shardGFID.X > thefile

The short answer is - no there exists no script currently that can piece the shards together into a single file. Long answer: IMO the safest way to convert from sharded to a single file _is_ by copying the data out into a new volume at the moment. Picking up the files from the individual bricks directly and joining them, although fast, is a strict no-no for many reasons - for example, when you

It gets all the way through the install, and then when it reboots, grub can't find the kernel. Grub can't find the kernel because the kernel was not instaled for some reason? I looked at the box through rescue mode and in /boot there is no kernel. Any ideas what might have happened? Cheers...james

Hi, Is it possible to recreate "smoothed" data sets in R, by performing a PCA and then reconstructing a data set from say the first 2/3 EOFs? I've had a look in the help pages and don't seem to find anything relevant. Thanks in advance, Laura Laura Quinn Institute of Atmospheric Science School of Earth and Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596

2018-04-23 9:34 GMT+02:00 Alessandro Briosi <ab1 at metalit.com>: > Is it that really so? yes, i've opened a bug asking developers to block removal of sharding when volume has data on it or to write a huge warning message saying that data loss will happen > I thought that sharding was a extended attribute on the files created when > sharding is enabled. > > Turning off

Il 22/04/2018 11:39, Gandalf Corvotempesta ha scritto: > Il dom 22 apr 2018, 10:46 Alessandro Briosi <ab1 at metalit.com > <mailto:ab1 at metalit.com>> ha scritto: > > Imho the easiest path would be to turn off sharding on the volume and > simply do a copy of the files (to a different directory, or rename > and > then copy i.e.) > > This

So a stock ovirt with gluster install that uses sharding A. Can't safely have sharding turned off once files are in use B. Can't be expanded with additional bricks Ouch. On April 22, 2018 5:39:20 AM EDT, Gandalf Corvotempesta <gandalf.corvotempesta at gmail.com> wrote: >Il dom 22 apr 2018, 10:46 Alessandro Briosi <ab1 at metalit.com> ha >scritto: > >> Imho

Dear all, in an LDA analysis with n groups n-1 LD functions result. Implicitly this defines an LD fucntion for the last group. Does there exist code already to explictly construct this LD function? Thanks, Stefan

Colleagues I am a new to R but already love it. I have the following problem: I fitted arima model to my time series like this (please ignore modeling parameters as they are not important now): x = scan("C:/data.txt") x = ts(x, start=1, frequency=1) x.fit<-arima(x, order = c(1,0,0), seasonal = list(order=c(0,0,1))) Now I want to use this model for forecasting and backtesting (!).

Il dom 22 apr 2018, 10:46 Alessandro Briosi <ab1 at metalit.com> ha scritto: > Imho the easiest path would be to turn off sharding on the volume and > simply do a copy of the files (to a different directory, or rename and > then copy i.e.) > > This should simply store the files without sharding. > If you turn off sharding on a sharded volume with data in it, all sharded

Hello, So I have a volume on a gluster install (3.12.5) on which sharding was enabled at some point recently. (Don't know how it happened, it may have been an accidental run of an old script.) So it has been happily sharding behind our backs and it shouldn't have. I'd like to turn sharding off and reverse the files back to normal. Some of these are sparse files, so I need to account

Hi. I have some narrow questions and a larger one. If I make an existinig LVM VG a storage pool, can I use some of the LV's for libvirt and some for the host? Or does the VG needed to be completely dedicated to virtualization? Assuming mixed use is possible, is it possible to do an LVM snapshot of an LV in use for a VM? The snapshot would have to be initiated and used on the host, I

Hi All. Looking for some guidance/experience with LVM and pvmove. I have a LUN/PV being presented from a iscsi SAN. The LUN/PV is presented to 5 servers as a shared VG they all have LV's they use for data, they are all connected via iSCSI. As the SAN I am using is being replaced I need to move onto a new unit. My migration strategy at this time is to 1. Present a new LUN from the new SAN

Hi All, I've been trying to put together a one off CentOS 4 based distro, and I ran into some trouble. First off just so you know we've been doing this with CentOS 3 and with RedHat 9 before that, so the inexperience is only with the delta between CentOS 3 and CentOS 4 (and RHEL 3 and RHEL 4 by extension). Anyway, the problem is that for some reason /dev/console is not getting created.