would like to share on my current configuration that has been running for > 4 years.
on my running server rack with my own temperature and humidity control/sensor,
I follow with my minor changes -> Best Practices for data center & server room monitoring
Moisture range 40%-60%, 35%-40% is...
NFS4 has better performance on writing, dare to see the presentation and try linux NFSV4 with V4 client?. you can not compared with ZFS that totaly different purposes.
I am trying to be objective on this thread.
I can push to clustering. clustering "gluster" and "ceph" is very fast and...
you should read ZFS on Linux - FAQ
this the important step:
dev/disk/by-id/: Best for small pools (less than 10 disks)
/dev/disk/by-path/: Good for large pools (greater than 10 disks)
/dev/disk/by-vdev/: Best for large pools (greater than 10 disks)
I suggest you to use dev/disk/by-id...
a bit OOT:
gluster and ceph are complecated :D. there is no way to make very simple due on involving many configuration.
once the system is running, you will be happy with the performance aka clustering!!!.
if you are running nfs v4 and client v4, you will get better performace..
I think, this thread not about ZFS :P...
btw I am using ZoL and NFS V4 server and all clients :D...
stay away with < V4...
2010 presentation ->...
async is a lot fast than sync.
async is not good for writing corruption on NFS server. ex. server crashes or crippled
I would not use async when nfs server is serving mostly for writing on the server.
would use async when nfs server mostly serving read-only files/data.
LSI HBA 9240 (IBM1015 OEM) P19 firmware :P...
this the same as my friend said, "oh yeah never happened".
Once got hit with identical issue, he was just screaming. and I said " I told you" when upgrading 3T or greate with many drives would cause the problem
I am happy with SAS2 backplane :P...
I read from Intel PDF spec...before .
Basically. If not zero. You need to be cautious.
This is important on single ssd configuration.
Rule of thumb. Not zero. Get a replacement ASAP or possible. Make a clone to new ssd.
I am not really worried on waiting when is on raid 1.
stick with Intel :)
I bought off lease ssd from ebay mostly. Intel S3500, S3700, 5X0, or 7X0..
I have runnign 520. smartctl tell me : 140 years :P...
I bought used one almost 3 years ago for $30
you need to pay attention on a simple flag:
233 Media_Wearout_Indicator 0x0032 100 100...
you have to use HBA card, SAS2008 IT firmware
by makin raid 0, the controller is processing in the middle
they recomendation is not good,
cut middle person aka skip controller processing, HBA card is the answer,
the other problem, ZFS loves to control the drives by itself.
raid 0 is not JBOD :D.....
you need to use HBA card not HW Raid card., ex lsi 2008.....
when you setup raid 0, you are running "middle person" between drive and ZFS
JBOD in lsi is called "Unconfigured Drive"
well, this is up to you..
in reality, hardware can not be disabled, the BIOS only blocks hardware functionality, the hardware still consume the same power.
for blocking unnecessary functinalities, that make sense in real world.
doubt is OK
I can posted watt-meter consumption too .. and internal guts...
I had doubt on A4 before...
I picked j1800 due on $35 price mini itx, and alas... AES was needed later.. and seems j1800 dual core was handling very good.
I picked again with A4-5000. and satisfied with that. 5W...
x86 or Risc low power is getting in the same point as today..
intel braswell N series low power, is very amazing, but pricey compared with A4-500 mini-itx :) .
on my exp:
you do not need to disable everything since disabling is not turning off the un-needed hardware in motherboard. just...
you took the wrong review :P
I hava itx a4-5000, maximum total powercounsumption is 20W max from power outlet!!! with 1 SM blower fan, 2X40mm fans, + dual nic i340, and 80G intel ssd sata 3, and 2 sticks of 4G DDR3L.
the system is running proxmox and running Virtualized router , and 1 VM...
is you H310 default firmware? or you flash to 9211 IR firmware (non megaraid).
on my experience:
megaraid IR firmware can pass seemless-ly unconfigured drive as real jbod
mpt2sas IR firmware seems adding middle layer to jbod
I have M1015, H200, and H310,
H200 flashed to dell...
ECC supported, this depens on installed CPU on that mobo
W3520 supports ECC UDIMM :D...
cheap W3520 processor -> http://www.ebay.com/itm/Intel-Xeon-W3520-2-66GHz-8MB-4-8GT-s-SLBEW-CPU-Server-Processor-/291422536309?hash=item43da230275:g:fLkAAOSwrklVMTQe
$9.95 with free shipping
try this one https://techmattr.wordpress.com/2013/08/30/sas-hba-crossflashing-or-flashing-to-it-mode/
I did flash with 6Gbfirmware (IT) with this instruction -> http://forums.overclockers.com.au/showthread.php?t=1045376
you NEED older sas2flash to crossflash form IR <> IT since starting with...
I had much luck on sf product...
fb is generic product, and they can program to match and work with your hw.
refurbished one that matched is the best since just plug and play.
Usually look used/refurb on ebay since the price can be lower than 50% or more....
most 3rd seller can reprogram/re-id SFP to match with calix........
I know one company and very good and reasonable price(good quality and not cheap)!! fiberstore www.fs.com
before buying, ask them and request them to program SFP with calix .
some hardwares reject OEM or 3prty ID...
we should move on, should'n we :)
just ignore that. this is useless and wasted your time by arguing with non-sense knowledge
Running ZoL since 2010..
first started with OmniOS :D... in early 2010.
are you honestly? :P heheheh
yey, already fixed!!!!
please reread my prev posting...
please look on http://open-zfs.org/wiki/Main_Page
OpenZFS was announced in September 2013 as the truly open source successor to the ZFS project. Our community brings together developers from the illumos, FreeBSD, Linux, and OS X platforms, and a wide range of companies that build products on top...
just for intro http://www.servethehome.com/current-lsi-hba-controller-features-compared/
this was my journey to storage :P
1) HW raid adaptec,, series 3XXX
2) move to software raid, onboard sata and pcie 1x sata dual or four ports.(ASM was one and the other one that I do remember), this...
there are two baytraik
baytrial (for tabet/cheap mobile) and baytrail D (desktop)
the graphical chips are not identical..
make sure support all Bay Trail model.
J1/2 baytrail, is bay trail D.
I believe freebsd 10.X does not support baytrail D videos. just standard vesa frame...
well said, Gea :)
this make reasonable for average/starting user that ZFS is simple only on zfs/zpool with scripting.
actually many more can be explored in ZFS :D
I am stop to reply since seems this thread going to neverland ......
I can explained in detail, go to STH and many will help you including me to understand your need
STH focus on storage and server parts (home user os SOHO)
crappy sata card ASM...
speed is very slow
marvell card is better than asm
if you have storage:
1) need to...
For good reason
Get hba card on eBay. Cheap..
Lowest was $35
Swing to sth forum. Many wil give your input objectively without break your pocket.
Stay away with crappy sata card..
Buy used entrperise parts and save $$$$$$$$.
Get used ssd enterprise on eBay. A way cheap ...