Checksum all of the files using something like md5sum and see if
they're actually identical. Then test each step of the copy and see
which one is corrupting your files.
On Fri, Aug 21, 2009 at 1:43 PM, Harry Putnam wrote:
> During the course of backup I had occassion to copy a number of
> quickti
Have each node record results locally, and then merge pair-wise until
a single node is left with the final results? If you can do merges
that way while reducing the size of the result set, then that's
probably going to be the most scalable way to generate overall
results.
On Thu, Jul 16, 2009 at
It's actually worse than that--it's not just "recent CPUs" without VT
support. Very few of Intel's current low-price processors, including
the Q8xxx quad-core desktop chips, have VT support.
On Wed, Jun 24, 2009 at 12:09 PM, roland wrote:
>>Dennis is correct in that there are significant areas wh
On Sun, Apr 19, 2009 at 10:20 AM, David Magda wrote:
> Looking at the web site for Sun's SSD storage products, it looks like what's
> been offered is the so-called "Logzilla":
>
> http://www.sun.com/storage/flash/specs.jsp
You know, those specs look almost *identical* to the Intel X25-E.
gt; Then, next question, can I trust any HD for my home laptop? should I go get
> a Sony VAIO or a cheap China-made thing would do?
> big price delta...
>
> z at home
>
> - Original Message - From: "Scott Laird"
> To: "JZ"
> Cc: "Toby T
> Thanks!
> z at home
>
>
> - Original Message - From: "Toby Thain"
> To: "JZ"
> Cc: "Scott Laird" ; "Brandon High" ;
> ; "Peter Korn"
> Sent: Thursday, January 08, 2009 5:25 PM
> Subject: Re: [zfs-discuss] ZF
RAID 2 is something weird that no one uses, and really only exists on
paper as part of Berkeley's original RAID paper, IIRC. raidz2 is more
or less RAID 6, just like raidz is more or less RAID 5. With raidz2,
you have to lose 3 drives per vdev before data loss occurs.
Scott
On Thu, Jan 8, 2009
On Wed, Jan 7, 2009 at 6:43 PM, JZ wrote:
> ok, Scott, that sounded sincere. I am not going to do the pic thing on you.
>
> But do I have to spell this out to you -- somethings are invented not for
> home use?
Yeah, I'm sincere, but I've ordered more or less the same type of
hardware for commerci
On Wed, Jan 7, 2009 at 4:53 PM, Brandon High wrote:
> On Wed, Jan 7, 2009 at 7:45 AM, Joel Buckley wrote:
>> How much is your time worth?
>
> Quite a bit.
>
>> Consider the engineering effort going into every Sun Server.
>> Any system from Sun is more than sufficient for a home server.
>> You wan
On Fri, Jan 2, 2009 at 8:54 PM, Richard Elling wrote:
> Scott Laird wrote:
>>
>> On Fri, Jan 2, 2009 at 4:52 PM, Akhilesh Mritunjai
>> wrote:
>>
>>>
>>> As for source, here you go :)
>>>
>>>
>>> http://cvs.opens
On Fri, Jan 2, 2009 at 4:52 PM, Akhilesh Mritunjai
wrote:
> As for source, here you go :)
>
> http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/cmd/zpool/zpool_vdev.c#650
Thanks. It's in the middle of get_replication, so I suspect it's a
bug--zpool tries to check on the replication s
I'm trying to add a pair of new cache devices to my zpool, but I'm
getting the following error:
# zpool add space cache c10t7d0
Assertion failed: nvlist_lookup_string(cnv, "path", &path) == 0, file
zpool_vdev.c, line 650
Abort (core dumped)
I replaced a failed disk a few minutes before trying thi
On Wed, Oct 29, 2008 at 3:42 PM, Mike <[EMAIL PROTECTED]> wrote:
> By Better I meant the best practice for a server running the Netbackup
> application.
>
> I am not seeing how using raidz would be a performance hit. Usually stripes
> perform faster than mirrors.
raidz performs reads from all de
On Sat, Oct 25, 2008 at 1:57 PM, Marcus Sundman <[EMAIL PROTECTED]> wrote:
> I don't want to scrub several TiB of data just to verify a 2 MiB file. I
> want to verify just the data of that file. (Well, I don't mind also
> verifying whatever other data happens to be in the same blocks.)
Just read t
On Wed, Oct 15, 2008 at 4:12 PM, Will Murnane <[EMAIL PROTECTED]> wrote:
> On Wed, Oct 15, 2008 at 18:30, Scott Laird <[EMAIL PROTECTED]> wrote:
>> Oh, also I kind of doubt that a 750W power supply will spin 16 disks
>> up reliably. I have 10 in mine with a 600W supply,
rtup; that'd be around 780W with 16 drives.
I wish delayed spinup wasn't such a pain with SATA.
Scott
On Wed, Oct 15, 2008 at 3:27 PM, Scott Laird <[EMAIL PROTECTED]> wrote:
> The onboard SATA ports work on the PDSME+. One of these days I'm
> going to pick up a co
The onboard SATA ports work on the PDSME+. One of these days I'm
going to pick up a couple of Supermicro's 5-in-3 enclosures for mine:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817121405
Scott
On Wed, Oct 15, 2008 at 12:26 AM, mike <[EMAIL PROTECTED]> wrote:
> Good news - I got s
In general, I think SLC is better, but there are a number of brand-new
MLC devices on the market that are really fast; until a new generation
of SLC devices show up, the MLC drives kind of win by default.
Intel's supposed to have a SLC drive showing up early next year that
has similar read perform
I've been tempted to get one of my neighbors to host a small box with
~4 drives and then either rsync or zfs send backups to it over wifi;
that'd protect against fire or theft, but not major earthquakes. I
don't think we're at risk from any other obvious disasters. The
up-front cost would be kind
I'm using smb. Mount the share via the finder, then go to the time
machine pref pane, and it should show up.
Scott
On Jan 14, 2008 10:03 AM, Brian Hechinger <[EMAIL PROTECTED]> wrote:
> On Mon, Jan 14, 2008 at 09:52:38AM -0800, Scott Laird wrote:
> >
port
to Time Machine this week, but who knows.
Scott
On Jan 14, 2008 9:40 AM, Arne Schwabe <[EMAIL PROTECTED]> wrote:
> Scott Laird schrieb:
> > I have an Asus P5K WS motherboard with a cheap Core 2 Duo CPU (E2140,
> > $70 or so) and one of the cheap SuperMicro 8-port PCI-X SA
Everything except the SuperMicro SATA card came from Newegg. They
didn't have the card in stock at the time, so I ordered it from
buy.com.
Scott
On Jan 14, 2008 9:33 AM, Alex <[EMAIL PROTECTED]> wrote:
> Thanks a bunch! I'll look into this very config. Just one Q, where did you
> get the case?
I have an Asus P5K WS motherboard with a cheap Core 2 Duo CPU (E2140,
$70 or so) and one of the cheap SuperMicro 8-port PCI-X SATA cards.
That gives you 14 supported SATA ports. Throw 4 GB of RAM into it
(~$100) and then either use 500 GB or 750 GB drives. One of the
Seagate 750s is down to $155
lity issues with the rest system.
>
> Noel
>
>
> On Jan 9, 2008, at 2:38 PM, Scott Laird wrote:
>
> > On Jan 9, 2008 11:26 AM, Noël Dellofano <[EMAIL PROTECTED]> wrote:
> >>> As soon as I get in to work and can backup my sparsebundle to a
> >>>
On Jan 9, 2008 11:26 AM, Noël Dellofano <[EMAIL PROTECTED]> wrote:
> > As soon as I get in to work and can backup my sparsebundle to a spare
> > MBP, I'm going to start banging on it.
>
> Sweet deal :)
>
> > So, do you have all of /Users on zfs, just one account, have you tried
> > a FileVaulted ac
On 12/6/07, Brian Hechinger <[EMAIL PROTECTED]> wrote:
> On Wed, Dec 05, 2007 at 06:12:18PM -0600, Al Hopper wrote:
> >
> > PS: LsiLogic just updated their SAS HBAs and have a couple of products
> > very reasonably priced IMHO. Combine that with a (single ?) Fujitsu
> > MAX3xxxRC (where xxx repres
I used the Asus P5K WS motherboard with 1 PCI-X slot and an Intel
E2140 CPU (Core 2 Duo, 1.6 GHz, 64 bits, < 45W). It works fine. With
a 8 500 GB drives in a raidz2 array, I'm getting ~160 MB/sec writing
and 280 MB/sec reading.
See
http://scottstuff.net/blog/articles/2007/10/20/notes-from-insta
Most video formats are designed to handle errors--they'll drop a frame
or two, but they'll resync quickly. So, depending on the size of the
error, there may be a visible glitch, but it'll keep working.
Interestingly enough, this applies to a lot of MPEG-derived formats as
well, like MP3. I had a
I've had this happen once or twice now, running n74. I'll run 'zpool
scrub' on my root pool and *immediately* get an error reported:
# zpool status -v tank
pool: tank
state: ONLINE
status: One or more devices has experienced an error resulting in data
corruption. Applications may be a
My copy hasn't arrived yet, but look in the file menu in Disk Utility.
http://thinksecret.com/archives/leopard9a377a/source/25.html
Scott
On 10/26/07, Andy Lubel <[EMAIL PROTECTED]> wrote:
>
> Yeah im pumped about this new release today.. such harmony in my
> storage to be had. now if OSX onl
I'm writing a couple scripts to automate backups and snapshots, and I'm
finding myself cringing every time I call 'zfs destroy' to get rid of a
snapshot, because a small typo could take out the original filesystem
instead of a snapshot. Would it be possible to add a flag (maybe -t )
to zfs destroy
On 10/18/07, Neil Perrin <[EMAIL PROTECTED]> wrote:
> >
> > The umem one is unavailable, but the Gigabyte model is easy to find.
> > I had Amazon overnight one to me, it's probably sitting at home right
> > now.
>
> Cool let us know how it goes.
Not so well. I was completely unable to get the car
On 10/18/07, Neil Perrin <[EMAIL PROTECTED]> wrote:
> > So, the only way to lose transactions would be a crash or power loss,
> > leaving outstanding transactions in the log, followed by the log
> > device failing to start up on reboot? I assume that that would that
> > be handled relatively clean
On 10/18/07, Neil Perrin <[EMAIL PROTECTED]> wrote:
>
>
> Scott Laird wrote:
> > I'm debating using an external intent log on a new box that I'm about
> > to start working on, and I have a few questions.
> >
> > 1. If I use an external log initial
I'm debating using an external intent log on a new box that I'm about
to start working on, and I have a few questions.
1. If I use an external log initially and decide that it was a
mistake, is there a way to move back to the internal log without
rebuilding the entire pool?
2. What happens if th
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