tape drive = harddisk with only one head, the head can't move, only the tape (disk/plate or any other name you want) could we get back and answer the main question? -------------------------- getting back to the first question, can MD support trim? yes/no/not now/some levels and layouts only? 2011/2/21 Guy Watkins <linux-raid@xxxxxxxxxxxxxxxx>: > } -----Original Message----- > } From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid- > } owner@xxxxxxxxxxxxxxx] On Behalf Of Mikael Abrahamsson > } Sent: Monday, February 21, 2011 9:02 PM > } To: linux-raid@xxxxxxxxxxxxxxx > } Subject: Re: SSD - TRIM command > } > } On Mon, 21 Feb 2011, Roberto Spadim wrote: > } > } > it can be used for badblock reallocation if harddisk have it a harddisk > } > is near to NOR ssd with variable accesstime, if head is near sector to > } > be read/write accesstime is small, if sector is far from head, access > } > time increase (normaly <=1 disk revolution if head control system is > } > good, for 7200rpm 1revolution is near to 8.33ms) > } > } Could we please stop this discussion. If you think HDDs should have this > } kind of bad sector reallocation scheme, please go to the HDD manufacturers > } and lobby to them. It is not on-topic for linux-raid ml. > } > } -- > } Mikael Abrahamsson email: swmike@xxxxxxxxx > > What about tape drives? :) > > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Roberto Spadim Spadim Technology / SPAEmpresarial -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html