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bloody SATA connectors (electrical)!
Storage systems Storage system issues, both hardware and software (comp.arch.storage)
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#11
 
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Re: bloody SATA connectors (electrical)! -
04-15-2007
, 03:45 PM
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Arno Wagner wrote: In comp.sys.ibm.pc.hardware.storage Nik Simpson <n_simpson (AT) bellsouth (DOT) net> wrote: willbill wrote: bloody SATA connectors (electrical)! i've come across connection issues with my (admittedly limited) use of SATA drives, both data and power, most recently power what an aggrevation! are others seeing this? Yes, I think there is a special place in hell for the idiot who designed the SATA connectors on the disk. I've given up, and when I build a PC I install a drive housing that occupies 3x5.25" bays and gives me four hot plug SATA bugs. Because of the way this is designed I've not had a single problem with power or drive connectors since doing this. The one I use is: http://www.satadrives.com/sadrcafor4sa.html Hmm. I hope they improved their manufacturing. I had two of these with a PCB manufaactured shoddily enough, that I got CRC errors on some of the disks. These errors were severe enough that disks dropped out of the RAID they were in and vanished vcompletely when connecting them directly. Took me a week to debug and then I just threw this trash out. I was also quite unimpressed with the cooling. Arno |
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I've got one that's been going about a year now, the other is more recent. So far I've not had any problems with them. But there are other products out there, maybe there are some better ones. |
Arno
#12
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willbill wrote: bloody SATA connectors (electrical)! i've come across connection issues with my (admittedly limited) use of SATA drives, both data and power, most recently power what an aggrevation! are others seeing this? No, since I use SCSI with SCA connectors these problems are nonexistent. You get what you pay for. SATA drives are basically toys equivalent to what comes out of a gumball machine. |
SATA drives aren't necessarily worse than SCSI or FC drives. Here's
the link:
Message-ID: <544vb6F1v7oqgU1 (AT) mid (DOT) individual.net>
http://www.computerworld.com/blogs/node/5038
http://storagemojo.com/?p=383
http://www.usenix.org/events/fast07/...tml/index.html
http://216.239.37.132/papers/disk_failures.pdf
--
Alexander Skwar
#13
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bloody SATA connectors (electrical)! i've come across connection issues with my (admittedly limited) use of SATA drives, both data and power, most recently power what an aggrevation! are others seeing this? |
Buy the ons intended for desktop cases, those with regular Molex power plug.
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bill |
#14
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willbill wrote: bloody SATA connectors (electrical)! i've come across connection issues with my (admittedly limited) use of SATA drives, both data and power, most recently power. what an aggrevation! are others seeing this? Yes, I think there is a special place in hell for the idiot who designed the SATA connectors on the disk. |
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I've given up, and when I build a PC I install a drive housing that occupies 3x5.25" bays and gives me four hot plug SATA bugs. Because of the way this is designed I've not had a single problem with power or drive connectors since doing this. |
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The one I use is: http://www.satadrives.com/sadrcafor4sa.html |
#15
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In comp.sys.ibm.pc.hardware.storage Nik Simpson <n_simpson (AT) bellsouth (DOT) net> wrote: Arno Wagner wrote: In comp.sys.ibm.pc.hardware.storage Nik Simpson <n_simpson (AT) bellsouth (DOT) net> wrote: willbill wrote: bloody SATA connectors (electrical)! i've come across connection issues with my (admittedly limited) use of SATA drives, both data and power, most recently power what an aggrevation! are others seeing this? Yes, I think there is a special place in hell for the idiot who designed the SATA connectors on the disk. I've given up, and when I build a PC I install a drive housing that occupies 3x5.25" bays and gives me four hot plug SATA bugs. Because of the way this is designed I've not had a single problem with power or drive connectors since doing this. The one I use is: http://www.satadrives.com/sadrcafor4sa.html Hmm. I hope they improved their manufacturing. I had two of these with a PCB manufaactured shoddily enough, that I got CRC errors on some of the disks. These errors were severe enough that disks dropped out of the RAID they were in and vanished vcompletely when connecting them directly. Took me a week to debug and then I just threw this trash out. I was also quite unimpressed with the cooling. Arno I've got one that's been going about a year now, the other is more recent. So far I've not had any problems with them. But there are other products out there, maybe there are some better ones. Maybe the just fixed that production quality issue. |
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Arno |
#16
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Arno Wagner wrote: http://www.satadrives.com/sadrcafor4sa.html Hmm. I hope they improved their manufacturing. I had two of these with a PCB manufaactured shoddily enough, that I got CRC errors on some of the disks. These errors were severe enough that disks dropped out of the RAID they were in and vanished vcompletely when connecting them directly. Took me a week to debug and then I just threw this trash out. I was also quite unimpressed with the cooling. If you really must use SATA you ought to try Supermicro chasis and backplanes as they are the best on the market. www.supermicro.com |
Sadly, even these have problems occasionally. I have a few of the
Supermicro 5 drive units and I had to send back one of them. We did
have one SCA connector fail a few years ago too. As for SATA vs. SCSI,
of course there are instances when SCSI is the only way to go (15K
drives for instance) but more often than not it is too limiting to go
with SCSI. We couldn't do a lot of what we do if we had to pay SCSI
prices. SATA has proven to be very reliable (except for one array that
used Maxtor drives... that was a nightmare but no data was lost and it
had nothing to do with SATA, just Maxtor). With about 90 SATA drives in
operation over the last year, we have had zero downtime due to the RAID
arrays and only one array that needed to failover to a spare drive.
With about 20 SCSI drives we had two drives that failed in the last
year. To be fair, the SCSI drives are much older than the SATA drives.
#17
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That's what you get if you buy drives intended for backplane use. Buy the ons intended for desktop cases, those with regular Molex power plug. |
connector?
If yes - can you name the models? I have only seens the SATA drives with new
style power connector, looking like the SATA data one but wider.
--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim (AT) storagecraft (DOT) com
http://www.storagecraft.com
#18
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That's what you get if you buy drives intended for backplane use. Buy the ons intended for desktop cases, those with regular Molex power plug. Have you ever seen the SATA drive with old-ATA-style 5pin large power connector? If yes - can you name the models? I have only seens the SATA drives with new style power connector, looking like the SATA data one but wider. |
traditional 4 pin molex connector in addition to the SATA power connector.
Some early Seagete models I think.
Arno
#19
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#20
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I don't think there ever were such drives. There were some that had the traditional 4 pin molex connector |
sightseeing distance, only remember that it has +-5V and +-12V (and maybe
ground too?)
--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim (AT) storagecraft (DOT) com
http://www.storagecraft.com
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