HAMMER version 4 work in progress (NOT for production systems)
dillon at apollo.backplane.com
Tue Nov 3 08:44:21 PST 2009
:Matthew Dillon wrote:
:> the only real way to test it is by pulling the SATA cable out of the
:> drive during heavy disk I/O (do NOT pull the power on a drive), or
:What thoughts in re pulling the (only) cable on a FW or USB-attached drive?
:(as it seesm both easier and 'safer' w/r access and/or other-than-fs damage)
It is fairly safe w/ the AHCI driver or the SILI driver. It is not
safe with the NATA driver. It may or may not be safe w/ the firewire
driver. It all depends on whether the driver properly aborts any
in-progress I/Os or not, and whether the filesystem then does the
right thing with the error condition.
<dillon at backplane.com>
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