On Wed, Sep 2, 2009 at 12:12 PM, Roland Rambau<roland.ram...@sun.com> wrote: > Jacob, > > Jacob Ritorto schrieb: >> >> Torrey McMahon wrote: >> >>> 3) Performance isn't going to be that great with their design but...they >>> might not need it. >> >> >> Would you be able to qualify this assertion? Thinking through it a bit, >> even if the disks are better than average and can achieve 1000Mb/s each, >> each uplink from the multiplier to the controller will still have 1000Gb/s >> to spare in the slowest SATA mode out there. With (5) disks per multiplier >> * (2) multipliers * 1000GB/s each, that's 10000Gb/s at the PCI-e interface, >> which approximately coincides with a meager 4x PCI-e slot. > > they use a 85$ PC motherboard - that does not have "meager 4x PCI-e slots", > it has one 16x and 3 *1x* PCIe slots, plus 3 PCI slots ( remember, long time > ago: 32-bit wide 33 MHz, probably shared bus ). > > Also it seems that all external traffic uses the single GbE motherboard > port. > > -- Roland > > > -- > > ********************************************************** > Roland Rambau Platform Technology Team > Principal Field Technologist Global Systems Engineering > Phone: +49-89-46008-2520 Mobile:+49-172-84 58 129 > Fax: +49-89-46008-2222 mailto:roland.ram...@sun.com > ********************************************************** > Sitz der Gesellschaft: Sun Microsystems GmbH, > Sonnenallee 1, D-85551 Kirchheim-Heimstetten > Amtsgericht München: HRB 161028; Geschäftsführer: > Thomas Schröder, Wolfgang Engels, Wolf Frenkel > Vorsitzender des Aufsichtsrates: Martin Häring > ******* UNIX ********* /bin/sh ******** FORTRAN ********** > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
Probably for their usage patterns, these boxes make sense. But I concur that the reliability and performance would be very suspect to any organization which values their data in any fashion. Personally, I have some old Dual P3 systems still running fine at home, on what were cheap motherboards. But would I advocate such a system to protect business data? Not a chance. I'm sure at the price they offer storage, this was the only way they could be profitable, and it's a pretty creative solution. For my personal data backups, I'm sure their service would meet all my needs, but thats about as far as I would trust these systems - MP3's, backups of photos for which I already maintain a couple copies of. -- Brent Jones br...@servuhome.net _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
