i don´t think so, since it´s ATA command, any ATA compatible can use it, it could be used for HD with badblocks and dynamic reallocation without problems, the harddisk don´t need a dedicated space for badblock. for md software we must know if devices support or not TRIM. the next question, md is ATA compatible? no!?, it´s a linux device, not a ATA device. what commands linux devices allow? could md allow TRIM? 2011/2/21 Mathias Burén <mathias.buren@xxxxxxxxx>: > On 21 February 2011 20:47, Phillip Susi <psusi@xxxxxxxxxx> wrote: >> On 2/21/2011 2:39 PM, Roberto Spadim wrote: >>> sorry, but i sent email without a information: >>> TRIM is a 'ATA Specification' command >>> >>> http://en.wikipedia.org/wiki/TRIM_command >>> >>> any disk with ATA command could suport TRIM, hard disk or ssd or >>> anyother type of phisical allocation >> >> Sure, but hard disks have no reason to, which is why they don't and >> won't support it. >> > > My point exactly. > > // M > -- > 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