Re: [OmniOS-discuss] 4kn or 512e with ashift=12

[Fred Liu]

So, you can “zpool create –o ashift=12” in illumos? I can’t do that in smartos 
at least….

From: Geoff Nordli [mailto:geoff.nor...@gmail.com] On Behalf Of Geoff Nordli
Sent: 星期一, 三月 21, 2016 10:59
To: Fred Liu; omnios-discuss
Cc: zfs-disc...@list.zfsonlinux.org
Subject: Re: [OmniOS-discuss] 4kn or 512e with ashift=12



Hi Fred.

Definitely, the ashift parameter has been around on the illumos for a couple of 
years.

thanks,

Geoff

On 16-03-20 05:21 PM, Fred Liu wrote:
The ashift parameter doesn't apply in illumos if my memory serves me well. It 
was introduced by ZoL.

Thanks.

Fred





On Sun, Mar 20, 2016 at 1:37 PM -0700, "Geoff Nordli" 
> wrote:
Quick, question.

Any performance differences between 4Kn and 512e with ashift=12?

I am thinking there should not be, since they will both write the full
4K block size.

The workload will be virtual machines using a zvol.

thanks,

Geoff
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Re: [OmniOS-discuss] 4kn or 512e with ashift=12

[Fred Liu]

The ashift parameter doesn't apply in illumos if my memory serves me well. It 
was introduced by ZoL.

Thanks.

Fred







On Sun, Mar 20, 2016 at 1:37 PM -0700, "Geoff Nordli" 
> wrote:

Quick, question.

Any performance differences between 4Kn and 512e with ashift=12?

I am thinking there should not be, since they will both write the full
4K block size.

The workload will be virtual machines using a zvol.

thanks,

Geoff
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Re: [OmniOS-discuss] supermicro 3U all-in one storage system

[Geoff Nordli]

http://www.newegg.com/Product/Product.aspx?Item=9SIA5EM2KP1657

Also, I created a new thread about the differences with 4kn and 512e.  
Logically, it would make sense the performance would be the same.   I 
think it would then depend on which one is cheaper.


thanks,

Geoff


On 16-03-20 01:15 AM, Matej Žerovnik wrote:

As far as I see, there are no 4Kn 4TB SAS drives, only 6TB.

 From performance view, is there any different between 4Kn or 512e that is 
formated with ashift=12?

Matej


On 19 Mar 2016, at 19:19, Geoff Nordli  wrote:

I have had really good luck with the Seagate drives as well.

I see you are running the ST4000NM0034, any reason why you didn't go with the  
ST4000NM0014 which is 4Kn?

thanks,

Geoff


On 16-03-19 04:21 AM, Matej Žerovnik wrote:

Hey there,

I’m just about to expand my SAN with LSI 3008 HBA. As far as I know, support 
for 3008 has been in Illumos for about a year if not more, so it should be 
stable. I did have problems with getting sas3ircu and sas3flash utils from LSI 
page working, but in the end, I had to get an older version (5.00) for it to 
work (I got it from nexenta github repo).

As far as HDD goes, I’m currently running around 100 Seagate SAS3 drives 
(ST4000NM0034) and none of them died in 4 months that I have them. I know it’s 
not a long era, but so far so good:) I also have around 180 Seagate 
Constellation 4TB SATA drives (ST4000NM0033) for over 3 years and only one or 
two drives died.

Matej


On 19 Mar 2016, at 00:12, Geoff Nordli  wrote:

Hi.

I have had good luck with the SuperStorage 6037R-E1R16L chassis with the LSI 
2308 IT mode HBA.

Thoughts on the 
http://www.supermicro.com/products/system/3U/6038/SSG-6038R-E1CR16L.cfm. It has 
the LSI 3008 HBA and Intel x540 network cards.

I want to get at least 4TB 3.5" SAS drives.  Any suggestions on those?

I will be installing the latest version of Ominos.

thanks,

Geoff




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[OmniOS-discuss] 4kn or 512e with ashift=12

[Geoff Nordli]

Quick, question.

Any performance differences between 4Kn and 512e with ashift=12?

I am thinking there should not be, since they will both write the full 
4K block size.


The workload will be virtual machines using a zvol.

thanks,

Geoff
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[OmniOS-discuss] User/group accounts for packaged daemons

[Jim Klimov]

Hello all,

With turtle speed I'm progressing to recipe the open-source stacks I used in 
sysadmin work, such as antispam relays. I'm working at the oi-userland in 
Hipster, and hopefully the good results can end up anywhere ;)

A solution of this sort involves running a number of services, such as a stack 
of milters, an antivirus engine, a sniffer (p0f), etc. - some with special 
privileges and constraints, and thus preferably different accounts, so possible 
security issues with one project do not let break into others. While some 
services might be generalized as 'mail' or 'antivir' accounts, it is not always 
good and safe to do so.

The illumos default UIDs and GIDs generally reserve numbers under 100 and above 
somewhere around 6. While there are Wiki pages for illumos and OI to list 
the well-known and occupied "system" account numbers and names, I'm not sure 
there is a procedure to claim and reserve the number so as to avoid conflicts.

So I was advised to ask around the community: are there any established ways to 
proceed here? What can be done to cook those packages well in practice? 

Grabbing random free uids/gids does not seem good, especially since (in my 
tests) the package got numbers under 100 that might clash with later installs 
of software that has valid fixed ID numbers.

On a side note, how do we uninstall or update IPS packages where software can 
create files, and we have no 'preremove' script goodness? :-)
For example, clamav downloads virus databases; when I try to uninstall it, 
there are 'lost+found' objects owned by its uid/gid, and so it can not undefine 
the uid/gid and remove the delivered working directory actions - so bam, pkg(5) 
fails either now or upon subsequent re-installation!
Also, in case of updates at least, i'd prefer to keep the bulky downloaded 
files in place, to save both on traffic and storage...

Sorry for the cluttered question, but I hope you get its point ;)
Thanks in advance, Jim Klimov

--
Typos courtesy of K-9 Mail on my Samsung Android
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Re: [OmniOS-discuss] supermicro 3U all-in one storage system

[Matej Žerovnik]

As far as I see, there are no 4Kn 4TB SAS drives, only 6TB.

From performance view, is there any different between 4Kn or 512e that is 
formated with ashift=12?

Matej

> On 19 Mar 2016, at 19:19, Geoff Nordli  wrote:
> 
> I have had really good luck with the Seagate drives as well.
> 
> I see you are running the ST4000NM0034, any reason why you didn't go with the 
>  ST4000NM0014 which is 4Kn?
> 
> thanks,
> 
> Geoff
> 
> 
> On 16-03-19 04:21 AM, Matej Žerovnik wrote:
>> Hey there,
>> 
>> I’m just about to expand my SAN with LSI 3008 HBA. As far as I know, support 
>> for 3008 has been in Illumos for about a year if not more, so it should be 
>> stable. I did have problems with getting sas3ircu and sas3flash utils from 
>> LSI page working, but in the end, I had to get an older version (5.00) for 
>> it to work (I got it from nexenta github repo).
>> 
>> As far as HDD goes, I’m currently running around 100 Seagate SAS3 drives 
>> (ST4000NM0034) and none of them died in 4 months that I have them. I know 
>> it’s not a long era, but so far so good:) I also have around 180 Seagate 
>> Constellation 4TB SATA drives (ST4000NM0033) for over 3 years and only one 
>> or two drives died.
>> 
>> Matej
>> 
>>> On 19 Mar 2016, at 00:12, Geoff Nordli  wrote:
>>> 
>>> Hi.
>>> 
>>> I have had good luck with the SuperStorage 6037R-E1R16L chassis with the 
>>> LSI 2308 IT mode HBA.
>>> 
>>> Thoughts on the 
>>> http://www.supermicro.com/products/system/3U/6038/SSG-6038R-E1CR16L.cfm. It 
>>> has the LSI 3008 HBA and Intel x540 network cards.
>>> 
>>> I want to get at least 4TB 3.5" SAS drives.  Any suggestions on those?
>>> 
>>> I will be installing the latest version of Ominos.
>>> 
>>> thanks,
>>> 
>>> Geoff
>>> 
>>> 
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