Paul Halliday wrote:
Hi,
I am in the process of building a new database server and after
pricing up 2 Dell models I thought I would throw this out just to see
which choice would be better suited for FreeBSD.
The demands on the system will be mostly network -> disk I/O with a
hope of best performance on quickly servicing numerous reads; for
example when reports are generated using the data in the database.
The 2 choices (we dont have that much money and they have to be Dell)
are a poweredge 1850 and a poweredge 850.
850 specs.
----------------
Procsesor: Pentium(Dual Core) 830 @ 3.0GHz/2X1MB Cache 800MHz FSB
Memory: 2GB DDR2, 533MHz (2x1GB) Dual ranked DIMMs
Disks: SATA
1850 specs.
------------------
Processors: 2 @ Xeon @ 3.0GHz/2MB Cache 800MHz FSB
Memory: 2GB DDR2, 400MHz (4x512) Single ranked DIMMs
Disks: Ultra 320
The pricing is really close.
Thanks.
I have yet to buy a SATA based Dell server where the drives were hotswap
or even easy to take out.
I have mostly Dell 1850s and 2850s, and all are RAID, they all use the
amr driver and are hot swap.
I don't recall ever trying the hot swap as I am yet to have a bad drive,
but I am pretty sure I have tried just pulling out a SCSI drive while
the machine was running and putting it back in and it was fine.
For the SATA stuff I have bought 750s with SATA RAID 1 and they are
fully hardware based, I never dealt with any drivers, I have them on
less important services and also have never had to get a HD replaced, if
I did the server would have to be shut down.
As for IO performance I have never done any real testing, I have noticed
that Raid 5 is slower for writes but thats just the standard rule for
Raid 5.
Mike
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