solution based solely on flash.
Let us know (on the list) how this works out for you.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 214.233.5089 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http
On Tue, Feb 23, 2010 at 2:09 PM, Erik Trimble wrote:
> Al Hopper wrote:
>>
>>
>> On Fri, Dec 4, 2009 at 1:06 AM, Erik Trimble > <mailto:erik.trim...@sun.com>> wrote:
>>
>> Hey folks.
>>
>> I've looked around quite a bit, and I ca
th using the
recommended Kingston RAM. Both are unstable/flaky. I've tried
removing some of the RAM to see if that makes a difference - it does
not. Conclusion: Run Away from this product.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice:
ot;hack job" and a couple of 1.8"
or 2.5" SATA SSDs, combined with an OpenSolaris plugin SATA controller,
would be a better solution. But I don't like this solution any more than I'm
sure you do!
Please contact me offlist if you have any ideas and please let us
u're probably eligible for a very nice
Federal Systems discount. My *guess* would be about 40%.
. snip ...
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member -
og:
http://virtguru.wordpress.com/
. .snip ..
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/ogb
n't rotate while it's sitting there, so if
> it's going to be sitting around for a while (e.g., seven years) better to
> use tape than something that sucks up power.
>
> LTO-5 is expected to be released RSN, with a native capacity of 1.6 TB and
> (uncompressed) writes at 180
are *minimum*, should be an x25-m SSD drive
[1] and only going *up* from this base point. YMMV of course - this
is based on my personal experience on a relatively small ZFS system.
[1] According to Intel, the x25m should last 5 years if you write 20Gb
to it every day. Of course they don't provi
; Thanks,
>
Congratulations Christopher - great product - and I'm sure that this
will be the first of a family of products for you! Personally I like
the simplicity of the design and the lack of a battery to worry about.
This is a great addition to any ZFS installation ...
.com appears to be selling
Intel SSDs at premium pricing levels.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/o
>
>
> --
> Eric D. Mudama
> edmud...@mail.bounceswoosh.org
>
> ___
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>
--
Al Hopper Logical Approach Inc,Plan
puts for such a cheap
>> MLC.
>> --
>> This message posted from opensolaris.org
>> ___
>> zfs-discuss mailing list
>> zfs-discuss@opensolaris.org
>> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>
>
On Sat, Jan 2, 2010 at 5:40 PM, Tim Cook wrote:
>
>
> On Fri, Jan 1, 2010 at 8:31 PM, Erik Trimble wrote:
>>
>> Bob Friesenhahn wrote:
>>>
>>> On Fri, 1 Jan 2010, Al Hopper wrote:
>>>
>>>> Interesting article - rumor has it that t
cro SATA connector:
wget ftp://ftp.seagate.com/pub/sff/SFF-8144.PDF
NB: Make sure you get the G2 version of the Intel drive - regardless
of the form factor.
No affiliation with Intel etc.
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.
resulting SSD very
difficult to predict or even describe - especially as the device
hardware and firmware continue to evolve. And some SSDs change the
algorithms they implement on-the-fly - depending on the
characteristics of the current workload and of the (inbound) data
being written.
There are some
any ZFS source
code??
Happy new year.
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/ogb/ogb_2005-2007
e vdevs?
>
> Does it really matter how i lay them out considering i only have gigabit
> network?
>
> Thanks for any help.
>
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133 Timezone
ure excursion over a relatively small
time period? If the drive firmware does its job and remaps damaged sectors
or tracks transparently, we, as the users, won't know - until it happens one
time too many!!
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
nality of the hardware
AFAIK. Usually an ECC error will generate a non-maskable interrupt
and the OS will have an appropriate handler setup to handle this
interrupt.
This is the extent of my understanding - without doing additional homework.
Regards,
--
Al Hopper Logical Approach Inc
-- Forwarded message --
From: Al Hopper
Date: Sat, Nov 21, 2009 at 8:23 PM
Subject: Re: [zfs-discuss] The 100,000th beginner question about a zfs server
To: "R.G. Keen"
On Sat, Nov 21, 2009 at 7:08 PM, R.G. Keen wrote:
>
> With apologies for clogging up the for
Keep lobbying your
point of view - I think interoperability should win out if it comes down to
an arbitrary decision.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Bo
acle) as a
commercial concern, is free to choose their own priorities in terms of how
they use their own IP (Intellectual Property) - in this case, the source for
the ZFS filesystem.
Any comments from the ZFS team would be appreciated.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-ap
h the Samsung disks. I'd
recommend the Intel 160Gb drives if its not too late to return the
Samsungs. The Intel drives currently offer the best compromise
between different work loads. There are plenty of SSD reviews and the
Samsungs always come out poorly in comparison testing.
Regards,
-
to be
used when a ZIL is being created?
Interesting thread - and commiserations to the team ZFS on the broken
fletcher implementation - we (developers) all have bad days!!
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133
-- Forwarded message --
From: Al Hopper
Date: Sat, Sep 19, 2009 at 5:55 PM
Subject: Re: [zfs-discuss] ZFS & HW RAID
To: Scott Lawson
On Fri, Sep 18, 2009 at 4:38 PM, Scott Lawson wrote:
. snip ..
>
> Sun Directory Environment:
> The directory team
Interesting blog:
http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-how-to-build-cheap-cloud-storage/
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr
or
> deleted from the filesystem). Now some of that data is referenced by
> multiple snapshots so it is not clear against which one it should be
> reported. Some of data is being uniquely referenced by only a one snapshot
> so such data is easy to be represented as being used by that specific
&
p someone else on the list who has
developed bad habits over the years..
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX a...@logical-approach.com
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005
rives from the zpool if you change your mind (you
can only remove the cache drive right now IIRC).
IMHO it makes more sense to add RAM to the system (if possible) in
order to get the best performance from ZFS - or wait until the
price/performance of SSDs make them a compelling buy.
Regards,
--
Al
/opensolaris-announce
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/ogb/ogb_2005-2007/
___
was my personal risk assessment and priority. I think
it was a good decision and it did'nt cause me any grief.
[1] I do recommend that you test the heck out of new RAM parts and
ensure that they get some airflow - especially if they are getting a
supply of hot air from any nearby CPU coolers.
On Fri, Nov 14, 2008 at 7:12 PM, Bob Friesenhahn
<[EMAIL PROTECTED]> wrote:
> On Fri, 14 Nov 2008, Al Hopper wrote:
>>
>> b) If I were building a system today, I'd go Intel - even thought I'm
>> an AMD fanboy - but I can't recommend AMD today ... unfortun
that the E7200
will work well in your application.
f) Look at the following reviews and pick a motherboard from any of them:
http://www.tomshardware.com/reviews/energy-efficient-motherboard,2067.html
http://techreport.com/articles.x/15737
http://www.tomshardware.com/reviews/intel-p45-motherboar
incorporates the new package update
facility. So you'll be able to upgrade any "problem" binaries very
easily and with very little of something going very wrong.
Choice is Good! :)
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
V
s on the market with more horsepower
than you've got in this system OTOH - this platform would make an
excellent firewall if you load MonoWall on it!
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133 Timezone: US CDT
OpenSolar
sed
> server should focus on maximizing installed RAM.
Agreed 100%
It's easy to find DDR2 RAM at around $20/gigabyte (based on 1Gb or 2Gb
DIMMs) and I've seen some deals as low a $8/Gb for Kingston RAM.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
an answer, Sol10 Update 6 is
based on Build 88 AFAIR. So looking at the features/performance of
that release will give you a good feel for Sol 10U6 .. the usual
disclaimers YMMV etc.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133
x for 2 to 4 SATA drives (with the
upgrades listed above [minus the graphics card]).
Email me offline if I can answer any further questions.
PS: It'll probably take you 2 or 3 hours to evaluate every combination
possible of the dell Vostro 200 box - but the price/performance is
unbeatable an
On Fri, Oct 17, 2008 at 10:51 AM, Bob Friesenhahn
<[EMAIL PROTECTED]> wrote:
> On Fri, 17 Oct 2008, Al Hopper wrote:
>>
>> a) inexpensive, large capacity SATA drives running at 7,200 RPM and
>> providing, approximately, 300 IOPS.
>> b) expensive, small capacity,
byte to make
them viable for your application, but capable of 3.5k+ IOPS
And you need large (inexpensive) capacity but high IOPS - which you
can only get from multi-way mirror configs. Solutions:
1) a multi-way mirror config of RAIDZ SATA disk drive based pools
(lots of drives, lots of power)
2) a
s SCSI ID). In that respect we seem to
have taken a step backwards with SATA drive technology.
[1] 12v power is used for the CPU, fans, graphics cards, controllers,
disk drives etc.
> Will
>
> PS: None of this stops me from wanting the work-grade stuff at
computer technology
where errors caused by people are far more likely to cause data loss.
Or a water leak over the weekend or etc.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing
y interesting
SATA product is the WD Velociraptor - which blurs the line between 7k2
SATA and 15k RPM SAS drives.
For the application the OP talked about, I doubt that he is going to
run out and purchase low-cost drives that are more at home is a
low-end desktop than they are in a ZFS based fil
the box as you can afford; ZFS
loves lots and lots of RAM and your users will love the performance
that large memory ZFS boxes provide.
Did'nt they just offer a thumper with more RAM recently???
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.
dations.
[1] on a 10 disk system we have:
a) a 5 disk RAIDZ pool
b) a 3-way mirror (pool)
c) a 2-way mirror (pool)
If I was to do it again, I'd make a) a 6-disk RAIDZ2 config to take
advantage of the higher reliability provided by this config.
Regards,
--
Al Hopper Logical Approach Inc,Plan
l slow down dramatically
while maxing out (100% utilization) one CPU (or core). And if your
system only has a single CPU... :(
Let me know what you find out. I know that the file name pattern is
what causes this bug to bite bigtime - and not so much the number of
files you use to test it.
I
".
>>
>> If you have the budget to run a few more "experiments", try this
>> SuperMicro card:
>> http://www.springsource.com/repository/app/faq
>> that others have had success with.
>>
>> Regards,
>>
>> --
>> Al Hopper Logi
;m missing something here - this
can't be right".
If you have the budget to run a few more "experiments", try this
SuperMicro card:
http://www.springsource.com/repository/app/faq
that others have had success with.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PR
y application where the workload is mostly
read only and the access pattern is random. Serving up CD and DVD
sized ISO images comes immediately to mind. In this application a
single M series drive providing 4,500 IOPS would be
cost/power/cooling/size/price competitive against five 73Gb 15k RPM
SA
Interesting flash technology overview and SSD review here:
http://www.anandtech.com/cpuchipsets/intel/showdoc.aspx?i=3403
and another review here:
http://www.tomshardware.com/reviews/Intel-x25-m-SSD,2012.html
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED
pset used on this
board dissipated around 45 Watts - so don't just look at the power
dissipation numbers for the CPU.
I'm not specifically recommending this board for use as a ZFS based
fileserver - but it might provide a solution for someone on this list.
PS: Since the Atom supports hyperthr
, or
>> even business critical data - in such a case, using X41x0 servers with
>> J4500 JBODs and a HAStoragePlus Cluster instead of AVS may be a much
>> better and more reliable option, for basically the same price.
>>
>
> Ralf,
>
> War wounds? Could you
gh memory in the ZFS host, you don't need
hardware RAID with buffer RAM. Spend your dollars where you'll get
the best payback - buy more drives and max out the RAM on the ZFS
host!!
In fact, if it's not too late, I'd return the 2540
Regards,
--
Al Hopper Logical Approach
ice, because Solaris does very little writing to the
> boot "disk". You can review configuration ideas to maximize the life
> of your CF device in this Solaris white paper for non-volatile memory;
> http://www.sun.com/bigadmin/features/articles/nvm_boot.jsp
>
> I hope th
the old days, because of the cost and lead
time, products were only committed to Integrated Circuits (ICs) aka
chips, after the technology had matured. This is no longer the case -
as we've seen with CMOS digital camera sensors and processing logic.
Now we have a case in point with SSDs, where
On Wed, Aug 20, 2008 at 5:29 PM, Tim <[EMAIL PROTECTED]> wrote:
>
>
> On Wed, Aug 20, 2008 at 5:17 PM, Bob Friesenhahn
> <[EMAIL PROTECTED]> wrote:
>>
>> On Wed, 20 Aug 2008, Al Hopper wrote:
>>
>> > It looks like Intel has a huge hit (pro
in (computer) heaven!
http://www.tomshardware.com/news/intel-idf-ssd,6205.html
http://www.theinquirer.net/gb/inquirer/news/2008/08/19/idf-2008-intel-ssd-cometh
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133 Timezone: US CDT
tent
> cannot import 'content': pool may be in use from other system
> use '-f' to import anyway
>
> [EMAIL PROTECTED]:~# zpool import -f content
> cannot import 'content': I/O error
>
> [EMAIL PROTECTED]:~# uname -a
> SunOS cs3.kw 5.10 Generic_127
On Sun, Aug 3, 2008 at 10:46 PM, Rahul <[EMAIL PROTECTED]> wrote:
> hi
> can you give some disadvantages of the ZFS file system??
Stay away from the yellow one.
> plzz its urgent...
I understand.
> help me.
Next!
Regards,
--
Al Hopper Logical Approach Inc,Plano,T
overall system performance. The
reason why an enterprise card helps is because it'll coalesce those
interrupts and leave the system CPU cores free to do useful work.
[0] and you'll probably need to be a really good investor to be able
to afford it! :)
[1] on a 10-disk system here, there
o
the production platform.
I can't wait for the market to reach commodity price/performance.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://w
box.
Conduct your own "experiments" with 15k SAS drives as slog/cache
devices. Worst case scenario, you'll simply end up using them as ZFS
vdevs. :)
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris
*great* additions to Suns product line.
> -- richard
>
>
>>
>> "The new Sun Fire X4540 server uses PCI Express IO technology for more
>> than triple the system IO-to-network bandwidth."
>>
>> http://www.sun.com/servers/x64/x4540/
>>
>> --
ss is correct, it's simply physics
- lack of airflow over the HDA (head disk assembly).
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
Voice: 972.379.2133 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/o
own, and do not necessarily represent those
> of my employer. (or my coworkers, or anyone else)
>
> cheers,
> Brian
>
>> Bob
>> ==
>> Bob Friesenhahn
>> [EMAIL PROTECTED], http://www.simplesystems.org/users/bfri
"letting the machine do the work" - this
philosophy is the correct approach IMHO. But is counter-intuitative
for those of use used to "explaining" our intent to a dumb, resource
starved computing platform.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PROTECTED]
V
; --
> Dick Hoogendijk -- PGP/GnuPG key: 01D2433D
> ++ http://nagual.nl/ + SunOS sxce snv90 ++
>
> ___
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL PR
nd I'm really
pleased with the feature/performance/stability mix. It might well be
the last SXDE release - but there is no doubt in my mind, that it's
the finest SXDE that was ever released! :) Kudos to all who worked
so hard to make it happen.
[0] the "b" indicates that it
On Wed, Jun 11, 2008 at 4:31 AM, Adam Leventhal <[EMAIL PROTECTED]> wrote:
> On Jun 11, 2008, at 1:16 AM, Al Hopper wrote:
>>
>> But... if you look
>> broadly at the current SSD product offerings, you see: a) lower than
>> expected performance - particularly in reg
On Wed, Jun 11, 2008 at 10:35 AM, Bob Friesenhahn
<[EMAIL PROTECTED]> wrote:
> On Wed, 11 Jun 2008, Al Hopper wrote:
>>
>> disk drives. But - based on personal observation - there is a lot of
>> hype surrounding SSD reliability. Obviously the *promise* of this
>>
lear in my OP then I
failed to communicate clearly. In both these roles (log/cache)
reliability is of the utmost importance.
Thanks for the link - I'll take a look/see.
> regards,
>
> Tobias Exner
>
>
>
> Al Hopper schrieb:
>>
>> I've been reading, with
s regarding SSD
reliability. Obviously Sun employees are not going to compromise
their employment and divulge upcoming product specific data - but
there must be *some* data (white papers etc) in the public domain that
would provide some relevant technical data??
Regards,
--
Al Hopper Logical Approa
t" solution to a problem that has already
been solved by ZFS and the current generation of high capacity, ultra
low-cost per terabyte, offered by modern hardware. IOW - it's a
people issue, rather than a technological issue.
Regards,
--
Al Hopper Logical Approach Inc,Plano,TX [EMAIL
8
config:
NAMESTATE READ WRITE CKSUM
tanku ONLINE 0 0 0
mirrorONLINE 0 0 0
c1t1d0 ONLINE 0 0 0
c2t0d0 ONLINE 0 0 0
logsONLINE 0 0 0
c4
that seem to work:
>> - when cards #1 and #3 - it fails
snip .
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.2134 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr
ainty
[3] memtestx86 v3 is your friend. Available on the UBCD (Ultimage
Bood CD ROM)
[4] odd mixture of 1Gb and 2Gb parts
[5] there are some very rare exceptions to this rule - for really
unusual workload scenarios (like scientific computing).
HTH.
Regards,
Al Hopper Logical Appr
On Sun, 6 Jan 2008, James C. McPherson wrote:
> Al Hopper wrote:
> ...
>> It's not recommended practice to modify the zone config files directly (bad
>> boy James!).
>
> Bad boy Al for making an unwarranted assumption about what
> I have or have not done!
Who
nku/home/username and avoid using the /export/home and /home
conventions. This leaves open the possibility of some NFS mounts
later.
Also, if you upgrade a box which has the UFS home filesystem mounted
as /export/home to use ZFS filesystems, you may elect to leave the old
drive(s) in place and
velopment lifecycle;
who knows what clever features/facilities will be dreamed up next.
Bear in mind, that if someone had told me I'd be running the ZFS
features facilites that are already available today (either through
Solaris or OpenSolaris b78 - including ZFS boot) I would have thought
th
om/documentation/storage/megaraid/SAS_IG.pdf
You can always get good advice from:
http://www.cs-electronics.com/
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.2134 Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr
erent characteristics. Then there is ZFS compression - which
might really help if your data is highly compressible.
Also ensure that you have sufficient network bandwidth into the ZFS
backup server.
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.
After that, I explained that
> cyg> while the likelihood of learning anything technical here was
> cyg> looking pretty poor, I didn't particularly like some of the
> cyg> personal attacks that I'd been subject to and had decided to confront
> them.
>
> Well, every
On Wed, 5 Dec 2007, Al Hopper wrote:
> On Wed, 5 Dec 2007, Eric Haycraft wrote:
>
> [... reformatted ]
>
>> Why are we still feeding this troll? Paid trolls deserve no response and
>> there is no value in continuing this thread. (And no guys, he isn't being
>
plenty of room for one or more extended postscripts to 'the last
> word in file systems'.
>
> - bill
>
Beep; Beep; Beep, Beep, Beep, beep beep beep beep-beep-beep
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.21
ication dosage in half.
I could be wrong, with my guess, but as long as I keep seeing this
"can you guess?" question, I feel compelled to answer it. :)
Please feel free to offer your best "can you guess?" answer!
Regards,
Al Hopper Logical Approach Inc, Plano, TX.
ales better,
incorporates additional useful features, and is easier to manage. That
discussion is the one that would take a lot of time to delve into adequately
(and might be considered off topic for this forum - which is why I've tried to
concentrate here on improvements that ZFS could actually
ery time you work on a system so equipped.
Tell Santa that you want an LsiLogic SAS HBA and some SAS disks for
Xmas! :)
[1] Finally, someone built a flash SSD that rocks (and they know how
fast it is judging by the pricetag):
http://www.tomshardware.com/2007/11/21/mtron_ssd_32_gb/
http://www.a
ystem can be designed and implemented. IOW - before a storage
subsystem can be correctly *engineered*.
Also - please don't be discouraged by this response. If you are
willing to fill in the blanks, I'm willing to help provide a
meaningful recommendation.
Regards,
Al Hopper
int serial links
are far more reliable than anything I could build with SCSI
technology.
Thank goodness for SATA and SAS
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.2134 Timezone: US CDT
OpenSolaris Governing Boar
he relative reliability/failure
rates of different ZFS configs.
PS: If we had to do it over, I'd probably go with a 6-disk raidz2,
in place of the 5-disk raidz1 - due to the much higher relibility of
that config.
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTEC
27;s site. Do you know
>> of any cards I should be looking for that uses this chip?
>
> http://www.cooldrives.com/sata-cards.html
>
> There are a couple on there for about $80. Not quite where you want to get I
> am sure but it is an option.
Yep - I see: http://www.co
- or - you can swap out the older drivers using the files
from:
http://www.opensolaris.org/jive/servlet/JiveServlet/download/80-32437-138083-3390/si3124.tar.gz
Note: if these drives are your boot drives, you'll need to do this
after booting from a CDROM/DVD disk, otherwise you can unload the
driver an
wer as
> blocks would be scattered over the disk, so a full-path update would
> take some time. I'd forgotten that the whole point of doing this is
> to prevent fragmentation...
>
> So a nice side effect of this approach is that if you use it, it
> makes itself more ef
licit his totally invaluable technical input.
And.. one note of caution for Jeff Bonwick and Team ZFS - lookout ...
for this guy - because his new ZFS competitor filesystem, called,
appropriately, GOMFS (Guess-O-Matic-File-System) is about to be
released and it'll basically, if I understand "ca
uld work for you. See:
http://www.cs-electronics.com/serial-ata.htm Also - talk to the CS
Electronics guys - they may offer you alternative solutions. I've
found them to be knowledgable and reasonably priced - they have never
foobarred an order on me. [the usual disclaimers - just a
around $165 and
works well with ZFS (SATA or SAS drives). The newer cards are less
expensive - but its not clear from the LSI website if they support
JBOD operation or if you can form a "mirror" or "stripe" using only
one drive and present it to ZFS as a single drive.
her drives I can't jumper without opening the case and
> voiding the drive warranty. Does anyone know if there is a system
> setting to drop it back to SATA1? I use zfs on a raid2 if makes a
> difference. This is on release of OpenSolaris 74.
What is the make/model# for the disk dr
has sufficient capacity on its 12Volt
rails (older PSUs did'nt even tell you how much current they can push
out on the 12V outputs).
See also: http://blogs.sun.com/elowe/entry/zfs_saves_the_day_ta
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.3
the entire process in about one hour.
http://sol10frominnerspace.blogspot.com/2007/09/setup-zfs-boot-for-build-72.html
Feedback welcome.
Regards,
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.2134 Timezone: US CDT
OpenSolaris Governing
eo N_America
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filesys c1t0d0s1 auto swap
pool tanks free / mirror c1t0d0s0 c2t0d0s0
dataset tanks/be1 auto /
dataset tanks/be1/usr auto /usr
dataset tanks/be1/opt auto /opt
datase
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