similar to: VDO killed my server

sorry corrections: For this test I created a 40GB lvm volume group with /dev/sdb and /dev/sdc then a 40GB LV then a 60GB VDO vol (for testing purposes) vdostats --verbose /dev/mapper/vdoas | grep -B6 'saving percent' output from just created vdoas [root at localhost ~]# vdostats --verbose /dev/mapper/vdoas | grep -B6 'saving percent' physical blocks : 10483712

Folks I'm looking for a solution for backups because ZFS has failed on me too many times. In my environment, I have a large amount of data (around 2tb) that I periodically back up. I keep the last 5 "snapshots". I use rsync so that when I overwrite the oldest backup, most of the data is already there and the backup completes quickly, because only a small number of files have

Hi David, in my opinion, VDO isn't worth the effort. I tried VDO for the same use case: backups. My dataset is 2-3TB and I backup daily. Even with a smaller dataset, VDO couldn't stand up to it's promises. It used tons of CPU and memory and with a lot of tuning I could get it to kind of work, but it became corrupted at the slightest problem (even a shutdown could do this, and

My two cents: 1- Do you have an encrypted filesystem on top of VDO? If yes, you will see no benefit from dedupe. 2- can you post the stats of vdostats ?verbose /dev/mapper/xxxxx (replace with your device) you can do something like: "vdostats -verbose /dev/mapper/xxxxxxxx | grep -B6 'save percentage' On Sat, May 2, 2020 at 9:54 PM david <david at daku.org> wrote: >

On May 3, 2020 8:33:33 AM GMT+03:00, Erick Perez - Quadrian Enterprises <eperez at quadrianweb.com> wrote: >sorry corrections: >For this test I created a 40GB lvm volume group with /dev/sdb and >/dev/sdc >then a 40GB LV >then a 60GB VDO vol (for testing purposes) > >vdostats --verbose /dev/mapper/vdoas | grep -B6 'saving percent' >output from just created

Also, if you want to use deduplication (via VDO) then you must remember to "dedupe then encrypt" Storage > LUKS > VDO > LVM old but good reference to: https://access.redhat.com/articles/2106521 On Tue, Jun 16, 2020 at 3:00 PM Jason Edgecombe <jwedgeco at uncc.edu> wrote: > > I recommend having LUKS be "under" LVM. the layers would be: > /dev/sda ->

Folks I've started to use "vdo" instead of zfs in Centos 7. I hope this is a wise decision. However, I'm a bit mystified in decoding the "vdostats" output. I'd like to figure out how well deduplication is working. One measure would be to find two numbers: L = How many bocks are in use as reported to tools like df P = How many actual blocks are in use.

CentOS Errata and Bugfix Advisory 2018:1408 Upstream details at : https://access.redhat.com/errata/RHBA-2018:1408 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: c5b48207e2d3003ba38df515a78b57062c7e27a21ebdcd9fd4a4043f55a50622 vdo-6.1.0.168-18.x86_64.rpm Source:

hi, I'm testing the new CentOS 8, seems latest kmod-kvdo-6.2.0.293-50.el8.x86_64 does not contain modules for latest kernel kernel-4.18.0-80.7.1.el8_0.x86_64 ?rpm -ql kmod-kvdo-6.2.0.293-50.el8.x86_64 /etc/depmod.d/kvdo.conf /lib/modules/4.18.0-79.el8+2.x86_64 /lib/modules/4.18.0-79.el8+2.x86_64/extra /lib/modules/4.18.0-79.el8+2.x86_64/extra/kmod-kvdo

Folks My experiments with installing ZFS-FUSE in a Centos 6 system reveal behavior different from that observed in Centos 5.6. The version of ZFS-FUSE is that provided on the EPEL repository, and was installed on a 32-bit machine. I use it because of its deduplication facility. In Centos 5.6, the facility worked as advertised. In Centos 6, however, the system "hung" in

> Am 04.03.2019 um 22:19 schrieb Francis via dovecot <dovecot at dovecot.org>: > > Le lun. 4 mars 2019 ? 12:48, Gerald Galster via dovecot <dovecot at dovecot.org <mailto:dovecot at dovecot.org>> a ?crit : > > Hallo Francis, > > have you tried removing the account from your ldap? If dovecot has no information about a particular user, it won't

k = c(1:9) if( length( which(k==3) ) ){ print("contained") }else{ print("not contained") } is therre a simple way to test if a vector/list contains a particular value? for example an operator, along the lines of: == more generally, is the a documentaion page that lists/describes all such operators? lastly, if you didn't know the answer to my question, how would you have

hi, it'd be useul if the centosplus and contrib directory can contain a small readme file or some kind of documentaion about the rpm inside. currently there is not any kind of such docs (ok johnny send a description about the kernel rpms, but if someone missed that email). eg the postfix rpm has the same description and changelog inside the rpm as the original ones. if someone just look into

Hi all! To add to my previous posting I want to give some more deatils give a more precise I want to print a hyphen to a pdf() or postscript() device. As the documentaion of postscript says ASCII Character 45("-") is mapped to a minus sign (ASCII Character 95) by default. The advice given is to use "\173" for a hyphen. But, the following code produces a curly brace instead

Glenn, I can't use MySQL as each node currently has MySQL however there is a lot of data that is stored locally on each box. I may have to take this route if I can't find something else but that would mean syncing all sorts of data that does not need to be synced. On Tue, Jul 30, 2019 at 10:03 PM Glenn Geller (VDOPh) <ggeller at vdo-ph.com> wrote: > Hi Dovid, > >

Hi all, with regard to LUKS; should it placed before LVM or after? Any recommendations? TRIM command fully supported through all layers etc? -- Leon

On Sat, May 2, 2020 at 10:54 PM david <david at daku.org> wrote: > > I'm looking for a solution for backups because ZFS has failed on me > too many times. In my environment, I have a large amount of data > (around 2tb) that I periodically back up. I keep the last 5 > "snapshots". I use rsync so that when I overwrite the oldest backup, > most of the data is

Hi I'm new to this list and hope this is the right way to contact you. I'm trying to create a boot disk using generic pxe stuff (not got there yet but still reading the manuals). Problem: Documentaion in memdisk.doc [memdisk.doc,v 1.18 2005/08/23 21:11:36 hpa Exp] points to http://www.intel.com/support/network/adapter/1000/software.htm this should be changed to

Luben, We all have different types of learning and how we approach this, let alone how we decompose things. With that, sorry you found this frustrating. Many of us put volunteer time into this trying to make things 'possible' and preferably 'easy' but we don't always get there. That said, I have shown multiple times over the last few years that the simple _one statement

I'm trying to understand better the differences between fixed and random effects by running very simple examples in the nlme package. My first attempt was to try doing a t-test in lme. This is very similar to the Rail example that comes with nlme, but it has two groups instead of five. So I try a1 <- 1:10 a2 <- 7:16 t.test(a2,a1) getting t(18)=4.43, p=.0003224. Then I try to do it