search for: remirroring

Displaying 7 results from an estimated 7 matches for "remirroring".

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2020 Nov 12
1
BIOS RAID0 and differences between disks
...dle new files on one disk, altered timestamps etc.? >> >> >> Thanks. >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos >> > How do I do the remirroring once the system is working again? I filed a bug report on bugs.centos.org (https://bugs.centos.org/view.php?id=17830#c37850) but I could use some more assistance to take this further... It was suggested that "if no kernel boots any more, I am pretty sure that your initial ramdisks were rebuil...
2020 Nov 05
3
BIOS RAID0 and differences between disks
My computer running CentOS 7 is configured to use BIOS RAID0 and has two identical SSDs which are also encrypted. I had a crash the other day and due to a bug in the operating system update, I am unable to boot the system in RAID mode since dracut does not recognize the disks in grub. After modifying the grub command line I am able to boot the system from one of the harddisks after entering the
2007 Oct 06
2
near-realtime file system replication
...journaled so they can be played back when things resume. I'm open to other approaches, so far I've found very little in this category... I briefly considered using LVM mirroring over iscsi to the slave, but A) this is synchronous, B) recovery from a service interruption would require remirroring the whole volume. I've been reading about GFS but am somewhat confused as to its capabilities. The examples given on redhat's pages seem to involve shared storage (SAN or whatever) and distributed cluster access, I don't need any of that, just simple master->slave one way async...
2020 Nov 05
1
BIOS RAID0 and differences between disks
> On Nov 4, 2020, at 9:21 PM, John Pierce <jhn.pierce at gmail.com> wrote: > > is it RAID 0 (striped) or raid1 (mirrored) ?? > > if you wrote on half of a raid0 stripe set, you basically trashed it. > blocks are striped across both drives, so like 16k on the first disk, then > 16k on the 2nd then 16k back on the first, repeat (replace 16k with > whatever your raid
2020 Nov 05
0
BIOS RAID0 and differences between disks
is it RAID 0 (striped) or raid1 (mirrored) ?? if you wrote on half of a raid0 stripe set, you basically trashed it. blocks are striped across both drives, so like 16k on the first disk, then 16k on the 2nd then 16k back on the first, repeat (replace 16k with whatever your raid stripe size is). if its a raid 1 mirror, then either disk by itself has the complete file system on it, so you should be
2006 Sep 08
0
Segfault at reboot caused by pciback.hide
Hi! I created a dedicated driver domain on my opteron machine (xen-3.0.2-3, changeset: 9762:1e225598ce82, 2.6.16.28, Debian Sid), and I discovered an interesting segfault at the last step of reboot: when the kernel flush out the md devices (raid1) the kernel prints the stack dump and reboot immidietly. After rebooting, the state of first md deveice is clean, but the second md device is dirty
2010 Jun 28
3
CentOS MD RAID 1 on Openfiler iSCSI
Has anybody tried or knows if it is possible to create a MD RAID1 device using networked iSCSI devices like those created using OpenFiler? The idea I'm thinking of here is to use two OpenFiler servers with physical drives in RAID 1, to create iSCSI virtual devices and run CentOS guest VMs off the MD RAID 1 device. Since theoretically, this setup would survive both a single physical drive