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#11
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bloody SATA connectors (electrical)!
In comp.sys.ibm.pc.hardware.storage Nik Simpson wrote:
Arno Wagner wrote: In comp.sys.ibm.pc.hardware.storage Nik Simpson 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. Arno |
#12
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bloody SATA connectors (electrical)!
Rita Ä Berkowitz ritaberk2O04 @aol.com 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? 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. I recently read a report from Google, and it basically comes down to, that SATA drives aren't necessarily worse than SCSI or FC drives. Here's the link: Message-ID: 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)!
"willbill" wrote in message
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? 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. bill |
#14
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bloody SATA connectors (electrical)!
"Nik Simpson" wrote in message
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. How strange when below you just say they work utterly fine when used as intended. 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. Gee, what a surprise: you are using them as intended. The one I use is: http://www.satadrives.com/sadrcafor4sa.html |
#15
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bloody SATA connectors (electrical)!
"Arno Wagner" wrote in message
In comp.sys.ibm.pc.hardware.storage Nik Simpson wrote: Arno Wagner wrote: In comp.sys.ibm.pc.hardware.storage Nik Simpson 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. Or maybe it just never existed. Arno |
#16
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bloody SATA connectors (electrical)!
Rita Ä Berkowitz wrote:
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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bloody SATA connectors (electrical)!
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. -- Maxim Shatskih, Windows DDK MVP StorageCraft Corporation http://www.storagecraft.com |
#18
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bloody SATA connectors (electrical)!
In comp.sys.ibm.pc.hardware.storage Maxim S. Shatskih wrote:
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. I don't think there ever were such drives. There were some that had the traditional 4 pin molex connector in addition to the SATA power connector. Some early Seagete models I think. Arno |
#19
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bloody SATA connectors (electrical)!
The new Western Digital SATA2 KS series of drives have
both SATA and standard 4 pin Molex connectors. |
#20
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bloody SATA connectors (electrical)!
I don't think there ever were such drives. There were some that had the
traditional 4 pin molex connector Is the usual disk/CD power connector 4pin or 5? Sorry, do not have this at sightseeing distance, only remember that it has +-5V and +-12V (and maybe ground too?) -- Maxim Shatskih, Windows DDK MVP StorageCraft Corporation http://www.storagecraft.com |
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