Sata SSDs crash Linux Mint(and others distros) in any MW-DMA modes.
Hi,
I have to use a proprietary tape backup software from 1997 to copy a couple 100GBs that will only work with a storage device in Multi-Word-DMA mode - MDMA mode (0-2). I have to use SATA SSDs to copy the backup tapes to. After connecting drives I change the mode of the SSD (2nd physical drive in computer) with the the following command in terminal: hdparm -d1 -X mdma2 /dev/sdb That works and puts my backup SSD drive in MW-DMA2 mode (max 16MB/S transfer rate). Then attempting to read/write to the drive freezes the machine, just copying a 50MB file to the drive in the terminal as a test, the tapes are not even connected at this point. All PIO and UDMA modes work, but any MDMA mode will cause a hard lock and crash the SSD when read/written to, I have to turn off power. Is this a bug in Linux Kernal (same happens in Ubuntu,Debian,Zorin and Suse). I find it hard to believe SATA SSDs no longer work in any MDMA mode (they advertise this as a supported mode - but they have dropped SWDMA modes). I have tried different motherboards and different brands of SATA SSDs to rule out hardware differences. |
No experience, but a quick search found this - looks very relevant.
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So this is a bug in Linux, simply an SATA SSD will not work in any MW-DMA mode and crash the OS when read/written to (all PIO and UDMA modes work). Any Linux Guru's out there who can help with this. |
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