> It appears the Raid 5/10 discard support does not work in the mainline > kernel. > > I've been trying to backport it to a RHEL 6 kernel without success. I > finally managed to setup a mainline dev box and discovered it doesn't > work on it either! > > I'm now testing on a stock 3.8.2 kernel. The drives I'm using are > Samsung 840 Pro's hanging off an LSI 9211-8i. No backplane and each > drive has a dedicated channel. No RAID on the LSI, its just an HBA. I'm not sure if TRIM/UNMAP is supported on that controller, even in HBA mode (and with IT firmware). I've also seen scterc fail to work on that controller as well, while working with an ordinary "stupid" controller on the same disk. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 roy@xxxxxxxxxxxxx http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. -- 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
