Hello przemolicc, Wednesday, June 28, 2006, 3:05:42 PM, you wrote:
ppf> On Wed, Jun 28, 2006 at 02:23:32PM +0200, Robert Milkowski wrote: >> Hello przemolicc, >> >> Wednesday, June 28, 2006, 10:57:17 AM, you wrote: >> >> ppf> On Tue, Jun 27, 2006 at 04:16:13PM -0500, Al Hopper wrote: >> >> Case in point, there was a gentleman who posted on the Yahoo Groups solx86 >> >> list and described how faulty firmware on a Hitach HDS system damaged a >> >> bunch of data. The HDS system moves disk blocks around, between one disk >> >> and another, in the background, to optimized the filesystem layout. Long >> >> after he had written data, blocks from one data set were intermingled with >> >> blocks for other data sets/files causing extensive data corruption. >> >> ppf> Al, >> >> ppf> the problem you described comes probably from failures in code of >> firmware >> ppf> not the failure of disk surface. Sun's engineers can also do some >> mistakes >> ppf> in ZFS code, right ? >> >> But the point is that ZFS should detect also such errors and take >> proper actions. Other filesystems can't. ppf> Does it mean that ZFS can detect errors in ZFS's code itself ? ;-) ppf> What I wanted to point out is the Al's example: he wrote about damaged data. Data ppf> were damaged by firmware _not_ disk surface ! In such case ZFS doesn't help. ZFS can ppf> detect (and repair) errors on disk surface, bad cables, etc. But cannot detect and repair ppf> errors in its (ZFS) code. Not in its code but definitely in a firmware code in a controller. -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
