Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Cc: ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> > Subject: Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel > s3700 > > I ended up having 7 total die. 5 while in service, 2 more when I hooked them > up to a test machine to coll

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

s.ceph.com > <ceph-users-boun...@lists.ceph.com>] *On Behalf Of *Quentin Hartman > *Sent:* Thursday, September 17, 2015 4:05 PM > *To:* Andrija Panic > *Cc:* ceph-users@lists.ceph.com > *Subject:* Re: [ceph-users] which SSD / experiences with Samsung 843T vs. > Intel s3700 &g

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Another one bites the dust... This is Samsung 850 PRO 256GB... (6 journals on this SSDs just died...) [root@cs23 ~]# smartctl -a /dev/sda smartctl 5.43 2012-06-30 r3573 [x86_64-linux-3.10.66-1.el6.elrepo.x86_64] (local build) Copyright (C) 2002-12 by Bruce Allen,

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

-users-boun...@lists.ceph.com] On Behalf Of Quentin Hartman Sent: Thursday, September 17, 2015 4:05 PM To: Andrija Panic Cc: ceph-users@lists.ceph.com Subject: Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700 I ended up having 7 total die. 5 while in service, 2 more when I

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

" came to the conclusion they we put to an "unintended use". " wtf ? : Best to install them inside shutdown workstation... :) On 18 September 2015 at 01:04, Quentin Hartman wrote: > I ended up having 7 total die. 5 while in service, 2 more when I hooked

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

I ended up having 7 total die. 5 while in service, 2 more when I hooked them up to a test machine to collect information from them. To Samsung's credit, they've been great to deal with and are replacing the failed drives, on the condition that I don't use them for ceph again. Apparently they sent

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Well, if you look at the very very fine print on their warranty statement and some spec sheets they say they are only supposed to be used in "Client PCs" and if the application exceeds certain write amounts per day, even if it's below the total volume of writes the drive is supposed to handle, it

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

On Tue, Sep 8, 2015 at 9:05 AM, Mark Nelson wrote: > A list of hardware that is known to work well would be incredibly >> valuable to people getting started. It doesn't have to be exhaustive, >> nor does it have to provide all the guidance someone could want. A >> simple

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

ginal Message- From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com <mailto:ceph-users-boun...@lists.ceph.com>] On Behalf Of Jan Schermer Sent: 7. syyskuuta 2015 11:44 To: Christian Balzer Cc: ceph-users; Межов Игорь Александрович

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

] which SSD / experiences with Samsung 843T vs. Intel s3700 Re: Samsungs - I feel some of you are mixing and confusing different Samsung drives. There is a DC line of Samsung drives meant for DataCenter use. Those have EVO (write once read many) and PRO (write mostly) variants. You don't want

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

f Of > Jan Schermer > Sent: 7. syyskuuta 2015 11:44 > To: Christian Balzer > Cc: ceph-users; Межов Игорь Александрович > Subject: Re: [ceph-users] which SSD / experiences with Samsung 843T vs. > Intel s3700 > > Re: Samsungs - I feel some of you are mixing and confusing diffe

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

e and user experiences from several different >> threads could be referenced easily in the future. I took a look at >> wiki.ceph.org and there was nothing on this. >> >> -- >> Eino Tuominen >> >> -Original Message----- >> From: ceph-users [mailto:ce

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Eino Tuominen > > -Original Message- > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com > <mailto:ceph-users-boun...@lists.ceph.com>] On Behalf Of Jan Schermer > Sent: 7. syyskuuta 2015 11:44 > To: Christian Balzer > Cc: ceph-users; Межов Игорь Алекс

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

[mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Quentin Hartman Sent: Thursday, September 03, 2015 1:06 PM To: Andrija Panic Cc: ceph-users Subject: Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700 Yeah, we've ordered some S3700's to replace them already. Should

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

ur configuration of your system? >>> What kind of workload are you running? Do you use Samsung SSD as separate >>> journaling disk, right? >>> >>> >>> >>> Thanks so much. >>> >>> >>> >>> James >>> >&

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

t;> >>>> Would be possible to get to know your configuration of your system? >>>> What kind of workload are you running? Do you use Samsung SSD as separate >>>> journaling disk, right? >>>> >>>> >>>> >>>> Thanks so much. &

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

eptember 04, 2015 11:53 AM > *To:* James (Fei) Liu-SSI > *Cc:* Quentin Hartman; ceph-users > > *Subject:* Re: [ceph-users] which SSD / experiences with Samsung 843T vs. > Intel s3700 > > > > Hi James, > > > > I had 3 CEPH nodes as folowing: 12 OSDs(HDD) and 2 SSDs (2x

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

. It is a little bit strange over here. Regards, James From: Andrija Panic [mailto:andrija.pa...@gmail.com] Sent: Friday, September 04, 2015 12:21 PM To: Quentin Hartman Cc: James (Fei) Liu-SSI; ceph-users Subject: Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700 Quentin, try

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

gt;> >> >> James >> >> >> >> *From:* ceph-users [mailto:ceph-users-boun...@lists.ceph.com] *On Behalf >> Of *Quentin Hartman >> *Sent:* Thursday, September 03, 2015 1:06 PM >> *To:* Andrija Panic >> *Cc:* ceph-users >> *Subject:* R

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

> > > *From:* Andrija Panic [mailto:andrija.pa...@gmail.com] > *Sent:* Friday, September 04, 2015 11:53 AM > *To:* James (Fei) Liu-SSI > *Cc:* Quentin Hartman; ceph-users > > *Subject:* Re: [ceph-users] which SSD / experiences with Samsung 843T vs. > Intel s3700 >

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

o:andrija.pa...@gmail.com<mailto:andrija.pa...@gmail.com>] Sent: Friday, September 04, 2015 12:21 PM To: Quentin Hartman Cc: James (Fei) Liu-SSI; ceph-users Subject: Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700 Quentin, try fio or dd with O_DIRECT and D_SYNC flags

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

2015 12:39 PM > *To:* James (Fei) Liu-SSI > *Cc:* Quentin Hartman; ceph-users > > *Subject:* Re: [ceph-users] which SSD / experiences with Samsung 843T vs. > Intel s3700 > > > > James, > > > > there are simple FIO tests or even DD test on Linux, which you ca

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

n Hartman > *Sent:* Thursday, September 03, 2015 1:06 PM > *To:* Andrija Panic > *Cc:* ceph-users > *Subject:* Re: [ceph-users] which SSD / experiences with Samsung 843T vs. > Intel s3700 > > > > Yeah, we've ordered some S3700's to replace them already. Should be here >

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

We also just started having our 850 Pros die one after the other after about 9 months of service. 3 down, 11 to go... No warning at all, the drive is fine, and then it's not even visible to the machine. According to the stats in hdparm and the calcs I did they should have had years of life left,

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Yeah, we've ordered some S3700's to replace them already. Should be here early next week. Hopefully they arrive before we have multiple nodes die at once and can no longer rebalance successfully. Most of the drives I have are the 850 Pro 128GB (specifically MZ7KE128HMGA) There are a couple 120GB

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

I really advise removing the bastards becore they die...no rebalancing hapening just temp osd down while replacing journals... What size and model are yours Samsungs? On Sep 3, 2015 7:10 PM, "Quentin Hartman" wrote: > We also just started having our 850 Pros die

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Hi , We got a good deal on 843T and we are using it in our Openstack setup ..as journals . They have been running for last six months ... No issues . When we compared with Intel SSDs I think it was 3700 they were shade slower for our workload and considerably cheaper. We did not run any

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Am 25.08.15 um 11:18 schrieb Götz Reinicke - IT Koordinator: Hi, most of the times I do get the recommendation from resellers to go with the intel s3700 for the journalling. Check out the Intel s3610. 3 drive writes per day for 5 years. Plus, it is cheaper than S3700. Regards, --ck

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

any details on that ? On Tue, 25 Aug 2015 11:42:47 +0200, Andrija Panic andrija.pa...@gmail.com wrote: Make sure you test what ever you decide. We just learned this the hard way with samsung 850 pro, which is total crap, more than you could imagine... Andrija On Aug 25, 2015 11:25 AM, Jan

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Make sure you test what ever you decide. We just learned this the hard way with samsung 850 pro, which is total crap, more than you could imagine... Andrija On Aug 25, 2015 11:25 AM, Jan Schermer j...@schermer.cz wrote: I would recommend Samsung 845 DC PRO (not EVO, not just PRO). Very cheap,

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

First read please: http://www.sebastien-han.fr/blog/2014/10/10/ceph-how-to-test-if-your-ssd-is-suitable-as-a-journal-device/ We are getting 200 IOPS in comparison to Intels3500 18.000 iops - those are constant performance numbers, meaning avoiding drives cache and running for longer period of

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

To be honest, Samsung 850 PRO not 24/7 series... it's something about desktop+ series, but anyway - results from this drives - very very bad in any scenario acceptable by real life... Possible 845 PRO more better, but we don't want to experiment anymore... So we choose S3500 240G. Yes, it's

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

We have some 850 pro 256gb ssds if anyone interested to buy:) And also there was new 850 pro firmware that broke peoples disk which was revoked later etc... I'm sticking with only vacuum cleaners from Samsung for now, maybe... :) On Aug 25, 2015 12:02 PM, Voloshanenko Igor

[ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

Hi, most of the times I do get the recommendation from resellers to go with the intel s3700 for the journalling. Now I got an offer for systems with MLC 240 GB SATA Samsung 843T. A quick research on google shows that that ssd is not as good as the intel, but good, server grade 24/7 etc. and not

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

I would recommend Samsung 845 DC PRO (not EVO, not just PRO). Very cheap, better than Intel 3610 for sure (and I think it beats even 3700). Jan On 25 Aug 2015, at 11:23, Christopher Kunz chrisl...@de-punkt.de wrote: Am 25.08.15 um 11:18 schrieb Götz Reinicke - IT Koordinator: Hi, most of

Re: [ceph-users] which SSD / experiences with Samsung 843T vs. Intel s3700

And should I mention that in another CEPH installation we had samsung 850 pro 128GB and all of 6 ssds died in 2 month period - simply disappear from the system, so not wear out... Never again we buy Samsung :) On Aug 25, 2015 11:57 AM, Andrija Panic andrija.pa...@gmail.com wrote: First read