Re: Mirrored Volume

From: Ricardo (Ricardo_at_discussions.microsoft.com)
Date: 08/09/04


Date: Mon, 9 Aug 2004 13:03:02 -0700

OK,

 but if the first disk fails, will the secound (mirrored) start to work
automaticaly to avoid system downtime ??
If, yes, is it transparent to users ?

Thanks

"Bjorn Landemoo" wrote:

> Ricardo
>
> The reason for creating a mirror is not data safety, but to reduce or
> eliminate downtime in case of a disk failure. To protect your data, a
> backup solution is essential.
>
> On a mirror, your data will not be protected against virus, file system
> corruption, hard disk controller failures that might create corruption or
> accidental deletion.
>
> Best regards
>
> Bjorn
> --
> Bjorn Landemoo - mvp2@landemoo.com - http://landemoo.com/
> Microsoft MVP (Windows Server - File System)
>
> "Ricardo" <Ricardo@discussions.microsoft.com> wrote:
>
> >I have a HD with critical informations ina W2K server. Configuring a secound
> >HD as mirrored, will ensure me I can restore the system in case of failure of
> >the first HD ?
>
>



Relevant Pages

  • Solaris RAID failover problems
    ... My intent is to mirror the drives completely, ... Can't read disk label. ... WARNING: md: d10: needs maintenance ... WARNING: forceload of misc/md_trans failed ...
    (comp.unix.solaris)
  • Re: Huge Av Disk Queue Length
    ... Write performance = 130 per mirror ... Mixed performance at a 1:1 R:W ratio = 195 IOPS per mirror. ... (sort of like weighted fair queuing for disk performance). ... put a 3020 in each location with FCP shelves for the primary data and SATA ...
    (microsoft.public.exchange.admin)
  • Re: how i locate swap area
    ... what you have with the command 'vgdisplay -v vg00'. ... Why Mirror Copies is 0? ... it seems that you have no disk mirroring. ... Primary Partition Table: ...
    (comp.sys.hp.hpux)
  • Re: Using mirroring to replace drive?
    ... I upgrade and rebuild it. ... drive which happens to be the system disk. ... and mirror the failing drive on the new drive. ... upgrade to 7.0 after establishing the new good drives). ...
    (freebsd-questions)
  • Re: VxVM : Cant open /dev/vx/rdsk/bootdg/rootvol
    ... disk as explained in the document). ... before "Reattaching the plexes rootvol-01, swapvol-01, to the relevant ... of the root mirror and change the state of the rootdisk to detached. ... # vxplex att rootvol-01 rootvol-02 ...
    (comp.unix.solaris)