Autor: panther (panther_at_wp.pl)
Data: Fri 21 Sep 2001 - 19:05:42 MET DST
Co to jest Low-Level-Format
od jednego z gości z Seagate, cytuję:
"Functions Performed by the Low Level Format Option
CAUTION: Using the low-level format option can cause some drives to stop
working. Please read these suggestions carefully before running a
low-level format.
On any IDE/EIDE/Fast-ATA drive, within any cylinder and on each surface, a
low-level command will try to reformat the media by issuing an InitTrk
command. This ATA-standard command was first available in the days of
MFM/RLL drive controllers. At that time, the inter-sector area, the sector
header (or prefix), the sector data area, ECC area, and sector suffix area
were all written as part of the track format.
How the Low Level Option Affects a Drive
Many different makes and models of hard drives no longer adhere to the
method that was implemented for MFM/RLL/ESDI technology. Today, with newer
drive technology, this InitTrk command will probably not accomplish the
same goal. New drive technology often uses the equivalent of hard sectored
drive writing, done with factory equipment to set up all portions of a
track, but not the actual data within sector data areas. Currently, due to
translation known within the drive intelligence and improved schemes for
higher data capacity on platters such as zone bit recording and skewed
tracks, there is no way to force the drive to perform a true low-level
format after the drive leaves the factory. It is up to the specific drive
make and model to appropriately respond to an InitTrk command; often an
inappropriate response can leave the drive in a non-functioning state.
Recommended uses of the Low Level Option
Based upon our research we believe that there are only two circumstances
when using the Low Level utility would be appropriate:
1. If a low-level format has already been done, a second corrective
attempt may be made.
2. As a last resort to test hardware before a drive is considered for a
return.
"
zamiast LLF zalecają Zero-Fill-Drive, jako o wiele bardziej bezpieczną
metodę na rataowanie dysku
pozdrawiam
panther
To archiwum zostało wygenerowane przez hypermail 2.1.7 : Tue 18 May 2004 - 22:54:33 MET DST