[Samba] questions regarding 40G Samba Server

[Götz Reinicke - IT Koordinator]

Hi,
we expect a growth in bigger file transfers (files n*10 GB up to
multiple 100GB) on a regular base from a smaller number of users
combined with the "normal" office use with word files, mail profiles etc
from about 500 users.

We plan a new Fileserver/Storage Head with 40Gb NICs client and storage
side.

What would be regarding to samba be of more importance: multiple Cores
or more MHz per core?

Any suggestions? Feedback? Thanks! and regards . Götz

[Garland McAlexander]

What shares will you be using? (NFS, CIFS, etc)

On Wed, Jul 13, 2016 at 2:11 AM, Götz Reinicke - IT Koordinator <

Post by Götz Reinicke - IT Koordinator
Hi,
we expect a growth in bigger file transfers (files n*10 GB up to
multiple 100GB) on a regular base from a smaller number of users
combined with the "normal" office use with word files, mail profiles etc
from about 500 users.
We plan a new Fileserver/Storage Head with 40Gb NICs client and storage
side.
What would be regarding to samba be of more importance: multiple Cores
or more MHz per core?
Any suggestions? Feedback? Thanks! and regards . Götz
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[Götz Reinicke - IT Koordinator]

Hi,

forgot that... CIFS and NFS. May be we split both to different servers.
One CIFS, one NFS.

Regards . Götz

Post by Garland McAlexander
What shares will you be using? (NFS, CIFS, etc)
On Wed, Jul 13, 2016 at 2:11 AM, Götz Reinicke - IT Koordinator
Hi,
we expect a growth in bigger file transfers (files n*10 GB up to
multiple 100GB) on a regular base from a smaller number of users
combined with the "normal" office use with word files, mail profiles etc
from about 500 users.
We plan a new Fileserver/Storage Head with 40Gb NICs client and storage
side.
What would be regarding to samba be of more importance: multiple Cores
or more MHz per core?
Any suggestions? Feedback? Thanks! and regards . Götz

[Garland McAlexander]

CIFS is single threaded, if you plan on using it with a large amount of
users, you'll want to have faster cores. NFS is multi threaded, so you can
take advantage of additional cores better. Depending on how many users you
are serving, it sounds like a six core E5 (higher per core clock) would fit
well.

On Wed, Jul 13, 2016 at 2:29 AM, Götz Reinicke - IT Koordinator <

Post by Götz Reinicke - IT Koordinator
Hi,
forgot that... CIFS and NFS. May be we split both to different servers.
One CIFS, one NFS.
Regards . Götz

Post by Garland McAlexander
What shares will you be using? (NFS, CIFS, etc)
On Wed, Jul 13, 2016 at 2:11 AM, Götz Reinicke - IT Koordinator
Hi,
we expect a growth in bigger file transfers (files n*10 GB up to
multiple 100GB) on a regular base from a smaller number of users
combined with the "normal" office use with word files, mail profiles etc
from about 500 users.
We plan a new Fileserver/Storage Head with 40Gb NICs client and storage
side.
What would be regarding to samba be of more importance: multiple

Cores

Post by Garland McAlexander
or more MHz per core?
Any suggestions? Feedback? Thanks! and regards . Götz

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[Götz Reinicke - IT Koordinator]

Thanks! single- vs. multi threaded is a good hint.

/Götz

Post by Garland McAlexander
CIFS is single threaded, if you plan on using it with a large amount
of users, you'll want to have faster cores. NFS is multi threaded, so
you can take advantage of additional cores better. Depending on how
many users you are serving, it sounds like a six core E5 (higher per
core clock) would fit well.
On Wed, Jul 13, 2016 at 2:29 AM, Götz Reinicke - IT Koordinator
Hi,
forgot that... CIFS and NFS. May be we split both to different servers.
One CIFS, one NFS.
Regards . Götz

Post by Garland McAlexander
What shares will you be using? (NFS, CIFS, etc)
On Wed, Jul 13, 2016 at 2:11 AM, Götz Reinicke - IT Koordinator
Hi,
we expect a growth in bigger file transfers (files n*10 GB up to
multiple 100GB) on a regular base from a smaller number of users
combined with the "normal" office use with word files, mail
profiles etc
from about 500 users.
We plan a new Fileserver/Storage Head with 40Gb NICs client and storage
side.

multiple Cores

Post by Garland McAlexander
or more MHz per core?
Any suggestions? Feedback? Thanks! and regards . Götz

<...>

[Garland McAlexander]

Sorry, I should have clarified I meant in use with Samba.

Post by Garland McAlexander
CIFS is single threaded, if you plan on using it with a large amount of

Oh, "my" cifs as a protocol is multi-threaded. It's part of the Samba
implementation that is single threaded. However, for large file I/O
Samba is multi-threaded.
Volker

[mathias dufresne]

Post by Garland McAlexander
CIFS is single threaded, if you plan on using it with a large amount of

Oh, "my" cifs as a protocol is multi-threaded. It's part of the Samba
implementation that is single threaded. However, for large file I/O
Samba is multi-threaded.

Does that means when some has to be transfered by Samba, Samba check the
file size and if that size is greater than a given size, samba forks itself
to have a separated process managing the transfer of that big file? Sorry,
I understand quickly only if explanation are long : )

And then, if I was right, what is the threshold size?

Cheers

Volker
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