629 reputation
1933
bio website identi.ca/grahamperrin
location United Kingdom
age 49
visits member for 3 years, 1 month
seen Jul 23 at 1:26

Day job: IT support to CENTRIM and Brighton Business School – four days per week at Freeman Centre on University of Sussex campus, one day at Mithras House on University of Brighton campus.


Apr
19
comment Fix bad blocks on Mac hard disk
@rob thanks, I didn't realise that. GRC Tech Support confirmed to me that recovery to something other than the disk from which recovery is attempted is not supported in the current version of SpinRite.
Apr
19
comment Fix bad blocks on Mac hard disk
In Ask Different there's a comment from @BSDGuy
Apr
18
awarded  Announcer
Apr
13
revised How to check whether there is bad sector on a USB harddisk on OS X?
As https://github.com/kasbert/OS-X-SAT-SMART-Driver/issues/6 is closed I can remove the caution about version 0.5 of OS X SAT SMART Driver
Apr
1
comment Fixing bad sectors on Apple Snow Leopard
Fix bad blocks on Mac hard disk (2010-06-02) and note that in some cases, the user may wish to recover data before auto-relocation – writing data to the drive will most likely result in volume or data corruption if a bad block is found and spared.
Apr
1
comment Fix bad blocks on Mac hard disk
Fixing bad sectors on Apple Snow Leopard (2009-10-30)
Apr
1
comment Fixing bad sectors
In an edge case (context below) it may be preferable to attempt recovery before reallocation.
Apr
1
comment Fixing bad sectors
@SimonRichter +1 and for a mission-critical system I'd recommend a suitably configured ZFS pool (if the OS can support it).
Apr
1
comment Continuous scanning of hard disk for Bad sectors
"… Scanning the HDD continuously should not increase bad sectors …" but it could increase the likelihood of automatic sector reallocation, which is not always a good thing. With an imperfect disk I should recommend as few reads as possible.
Apr
1
answered Checking number of reallocated sectors of HDD through Disk Utility, Mac OS X
Apr
1
answered Reallocated bad sectors cause my HDD to slow down?
Apr
1
revised How to check whether there is bad sector on a USB harddisk on OS X?
Links and tweaks.
Apr
1
comment Fix bad blocks on Mac hard disk
@rob harm in what way? SpinRite seems to combine a number of approaches, with an emphasis on extraordinarily good care
Apr
1
answered Fix bad blocks on Mac hard disk
Apr
1
answered How to check whether there is bad sector on a USB harddisk on OS X?
Mar
30
comment Removing encrypted partition on Mac os X does not work
Error -69886 also features in a question in Ask Different: On 10.7.4 coreStorage unable to create concatenated disk error -69886
Mar
30
answered Removing encrypted partition on Mac os X does not work
Feb
16
awarded  Announcer
Feb
5
comment secure file erase on SSD
How to securely delete files stored on a SSD? (2009-08-13)
Feb
2
comment Uninstall Java on Mac OS X?
More recent, in Ask Different: Uninstalling Java on Lion. Please note in particular this comment to an answer.