Date: Mon, 20 Jul 2009 16:29:13 -0400 From: "Grant Peel" <gpeel@thenetnow.com> To: "mojo fms" <fbsdlilly@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: NFS- SAN - FreeBSD Message-ID: <85A4A9F5895D4CDCAEDF23E8181A118D@GRANT> References: <25A3192F31A344B99F50583BDC58C921@GRANT> <C4577BCC84D24FFE97FD4036C2C4FB82@GRANT> <f151ba00907201321x363de61ai27c54d4902d1d9fc@mail.gmail.com>
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Thanks for the reply.
I have not used/investigated the iSCSI thing yet....
The original question is can I just use an NFS mount to the storage's =
/home partition?
-Grant
----- Original Message -----=20
From: mojo fms=20
To: Grant Peel=20
Cc: freebsd-questions@freebsd.org=20
Sent: Monday, July 20, 2009 4:21 PM
Subject: Re: NFS- SAN - FreeBSD
You would be better off at least having the SAN on 1gb ethernet or =
even better tripple 1gb (on a 100mb switch should be fine but you need =
failover for higher avaliability) ethernet for latency and failover =
reasons with a hot backup on the network controller. I dont see why you =
could not do this, its just iscsi connection normally so there is not a =
big issue getting freebsd to connect to it. We run 2 of the 16tb =
powervault which does pretty well for storage, one runs everything and =
the other is a replicated offsite backup. Performance wise, it really =
depends on how many servers you have pulling data from the SAN and how =
hard the IO works on the current servers. If you have 100 servers you =
might push the IO a bit but but it should be fine if your not serving =
more than 2Mb/s out to everyone, the servers and disks are going to =
cache a fair amount of always used data.
On Mon, Jul 20, 2009 at 11:52 AM, Grant Peel <gpeel@thenetnow.com> =
wrote:
Hi all,
I am assuming by the lack of response, my question to too long =
winded, let me re-phrase:
What kind of performance might I expect if I load FreeBSD 7.2 on a =
24 disk, Dell PowerVault when its only mission is to serve as a local =
area storage unit (/home). Obviously, to store all users /home data. =
Throug an NFS connection via fast (100m/b) ethernet. Each connecting =
server (6) contain about 200 domains?
-Grant
----- Original Message ----- From: "Grant Peel" =
<gpeel@thenetnow.com>
To: <freebsd-questions@freebsd.org>
Sent: Saturday, July 18, 2009 10:35 AM
Subject: NFS- SAN - FreeBSD=20
Hi all,
Up to this point, all of our servers are standalone, i.e. all =
services and software required are installed on each local server.
Apache, Exim, vm-pop3d, Mysql, etc etc.
Each local server is connected to the Inet via a VLAN (WAN), to =
our colo's switch.
Each server contains about 300 domains, each domain has its own =
IP.
Each sever is also connected to a VLAN (LAN) via the same (Dell 48 =
Port managed switch).
We have been considering consolidating all users data from each =
server to a central (local), storage unit.
While I do have active nfs's running (for backups etc), on the LAN =
only, I have never attempted to create 1 mass storage unit.
So I suppose the questions are:
1) Is there any specific hardware that anyone might reccommend? I =
want to stick with FreeBSD as the OS as I am quite comfortable admining =
it,
2) Would anyone reccomend NOT using FreeBSD? Why?
3) Assuming I am using FreeBSD as the storage systems OS, could =
NFS simply be used?
4) Considering out whole Inet traffic runs about 2 Mb/s, is there =
any reason the port to the Storage unit should be more than 100 M/b =
(would it be imparative to use 1 G/b transfer)?
TIA,
-Grant
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