> Do a "lockfs -w", then start the BCV copy, then (once that started) do a
> "lockfs -u".
> A writelocked filesystem is "clean", needs not to be fsck'ed before being
> able to mount it.
>
> The disadvantage is that write ops to that fs in question will block while
> the lockfs -w is active. But
On Fri, 3 Aug 2007, Damon Atkins wrote:
[ ... ]
> UFS forcedirectio and VxFS closesync ensure that what ever happens your files
> will always exist if the program completes. Therefore with Disk Replication
> (sync) the file exists at the other site at its finished size. When you
> introduce DR
>Date: Thu, 26 Jul 2007 20:39:09 PDT
>From: "Anton B. Rang"
>That said, I?m not sure exactly what this buys you for disk replication.
>What?s special about files >which have been closed? Is the point that
>applications might close a file and then notify some other >process of the
>file?s availa
>Date: Thu, 26 Jul 2007 20:39:09 PDT
>From: "Anton B. Rang" <[EMAIL PROTECTED]>
>That said, I?m not sure exactly what this buys you for disk replication.
>What?s special about files >which have been closed? Is the point that
>applications might close a file and then notify some other >process of
> I'd implement this via LD_PRELOAD library [ ... ]
>
> There's a problem with sync-on-close anyway - mmap for file I/O. Who
> guarantees you no file contents are being modified after the close() ?
The latter is actually a good argument for doing this (if it is necessary) in
the file system, rat
On Thu, 26 Jul 2007, Damon Atkins wrote:
> Guys,
> What is the best way to ask for a feature enhancement to ZFS.
>
> To allow ZFS to be usefull for DR disk replication, we need to be able
> set an option against the pool or file system or both, called close
> sync. ie When a programme closes a f
Guys,
What is the best way to ask for a feature enhancement to ZFS.
To allow ZFS to be usefull for DR disk replication, we need to be able
set an option against the pool or file system or both, called close
sync. ie When a programme closes a file any outstanding writes are flush
to disk, bef
