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- Path: sparky!uunet!BTVLABVM.VNET.IBM.COM
- From: JULIUS@BTVLABVM.VNET.IBM.COM (Julius C. Chang)
- Message-ID: <19921105.070408.127@almaden.ibm.com>
- Date: Thu, 5 Nov 92 09:19:03 EST
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Spinrite II on IDE drives
- Lines: 59
-
- If the IDE drives that were low level formatted had to be dumped and
- replaced with new drives, then that suggests that the LLF caused
- unrecoverable physical damage. What is the origin of this damage
- such that a new LLF from the factory cannot restore the drive? If
- it is just a case of encoded information on the drive getting erased
- (bad track info, head positioning info), then why can't that data
- simply be recopied to the drive by the manufacturer?
-
- My recollection of Spinrite II on my Maxtor LXT-213A drive is that
- Spinrite determined that it couldn't work its usual low-level magic
- because the drive uses sector translation, not because it was an IDE
- per se. I don't remember Spinrite complaining about the on-board
- buffer of the Maxtor drive.
-
- For those readers who have LLF'ed their IDE drives successfully, were
- the drives really formatted? I have a vague recollection that some drives
- ignore the LLF command (and this was mentioned previously by another
- poster) from an old Byte magazine article on IDE. If this is the case,
- then what is the drive really doing if it isn't LLF'ing? Is it performing
- a logical format (say just zeroing the FAT) so that one could go in
- and unerase the data on the drive after the apparent LLF?
-
- -Julius
-
-
- ------------------------------- Referenced Note ---------------------------
- Subject: Spinrite II on IDE drives
- From: cstadbt@csv.warwick.ac.uk (Mr C A Elliott)
- Date: 5 Nov 1992 10:41:20 -0000
- Message-ID: <1datogINNnkt@clover.csv.warwick.ac.uk>
- NNTP-Posting-Host: clover.csv.warwick.ac.uk
-
- Spinrite II does not like IDE drives. Firstly, many have cache systems
- in them which Spinrite may or may not recognise, but if it does you won't
- even be able to load the program up. Secondly, when you do and ask Spinrite
- to begin its analysis, it will go all the way through (showing you intersector
- angle, RPM etc.) until it gets to the field showing encoding technology. A
- message will then come up informing you that the drive has different
- parameters to what the controller is reporting (sector translation at work!)
- and will refuse to low level format the drive.
-
- I don't understand why there is an obsession with low level formatting
- IDE drives. I realise that for people that have worked with RLL or MFM
- technologies, low level formats may have seemed to fix a lot of problems, but
- IDE drives just do not like it.
-
- Many BIOS (especially AMI) will low level format an IDE drive (it will
- also put hundreds of errors on it and kill it), but the only real way
- to do it is to use the software that manufacturers supply. Despite working
- for a company that used thousands of Seagate drives a day, Seagate would
- still not let us have a copy of the software, although I have used the
- Western Digital software. When drives would come back for repair, many
- had been low levelled using various programs, and all were dumped and had
- to be replaced with new drives.
-
- Charles
-
- cstadbt@csv.warwick.ac.uk
-
-