Hi Henrique,

500GB is fine for thgis application, however.....

I don't have a problem trusting an SSD on my own computer, but I am not sure if the longevity/endurance/reliability is proven for enterprise 24/7 reliability on a critical database server, is it?

In any case, I still need a decent eSATA PCI card for the XServe - anyone ever buy one with good results?

-Kieran

On Dec 14, 2009, at 1:57 PM, Henrique Gomes wrote:

If you really need 1Tb now and only spend <$1000 then don't read the rest :-)

If you can live with 500GB and can spend a little more, think about a 500GB SSD drive and forget the RAID part, one SSD drive is faster than two mechanical drives (no seek time) and I see no point in mirroring them as the main causes for it are gone with flash; no bad sectors, no head crash etc... And you are going to backup regularly even if mirroring right?

A search for '500gb ssd' gives OCZ drives for ~ $1500. You can then either get an e-sata or firewire enclosure. Or move the internal drive to an external enclosure and put the SSD inside if that's were the majority of disk traffic is going to be.

The reason I bring this up is that I just replaced the drive on my macbook pro with an Intel SSD and altough it's a smaller one (80GB) I'm still amazed with the performance. My dashboard took >30secs to fully initliaze, now it's more like 2 seconds. Eclipse, openoffice and other really slow starters appear in 3 or 4 seconds. Did I say it's fast?

Henrique

On Dec 14, 2009, at 6:15 PM, Kieran Kelleher wrote:

Thanks for the warning! Thanks to everyone for responses so far.....

OK, so regular 4-drive RAID 1+0 is what it will be, either the OWC or one of the ones recommended below.

Next up ....... eSATA PCI cards for Dual G5 XServe - anyone have any good recommendations? Here is one I found:
http://www.datoptic.com/cgi-bin/web.cgi?product=eSATA_pcix&detail=yes

-Regards, Kieran

On Dec 14, 2009, at 12:47 PM, ACN wrote:

Run, don't walk, away from the Drobo. While the later Firewire based models may have improved, our interaction with the first gen models went like this... Plug unit in. Trust your data to it. Have no data. Let me put it another way. Drobo came to us for a little dog and pony show. They left us our NFR and before the rep made it to the elevator, we broke it so bad he took it back. This is a true story. On of my hardware guys killed the unit in less than 5 minutes while doing the supposedly supported drive swap.

The OWC device looks nice if you need rack mount storage (I've had no experience with it). If you are set on a 4 drive unit, we recommend for our customers either: ArticRoc (http://www.rocstor.com/Products/arcticroc-4t.html ), the RTX-400 (http://www.wiebetech.com/products/RTX400QR.php), or the HDElement (http://www.caldigit.com/HDElement/). The CalDigit stuff we usually use for video customers so you are likely not looking for that type of transactional storage. The others have proven to be flexible and reliable.

Stay away from the Lacie stuff. Again, many bad experiences (although they now have a tempting rack mount unit for FC but the price is likely too high for your needs). The MyBook drives are also not high on my recommend list.

Hope this helps

R-


On Dec 14, 2009, at 9:04 AM, Kieran Kelleher wrote:

Hi All,

Looking for suggestions for an economical (< $1000) "poor man's" RAID 1+0 4-drive storage solution for a dual 2.0 G5 Xserve that must be used as a dedicated database server. It is a cluster node model with just one hard-drive bay.

It has Firewire 800 ports and 2 PCI-X slots. One PCI slot has a video card, one is empty.

I was thinking possibly of a esata PCIX card with a OWC 4-drive hardware RAID rack unit: http://www.datoptic.com/cgi-bin/web.cgi?product=eSATA_pcix&detail=yes - $99 http://eshop.macsales.com/shop/hard-drives/RAID/Rack_Mount/FireWire_eSATA_USB2_RAID - $850 (includes 4 x 500GB enterprise hard drives)

There will be 2 slaves continuously replicating for additional data protection.

Any thoughts or other suggestions?

Regards, Kieran
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