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Legacy Forums => General Discussion (Legacy) => Topic started by: dave on April 14, 2003, 11:57:43 AM

Title: PIO or DMA for RAID
Post by: dave on April 14, 2003, 11:57:43 AM

Hoow do I make both drives on a soft raid use PIO or DMA. My problem is one drive is PIO and the other is DMA

Title: Re: PIO or DMA for RAID
Post by: Herculito on April 17, 2003, 08:55:12 PM

Hi,

You should use the hdparm command to enable DMA on both drives (see http://forums.contribs.org/index.php?topic=7312.msg26712#msg26712 or man hdparm), make sure that both drives are configured as master (no slave devices such as IDE cd-roms etc if you have a PIO device on the same IDE channel it may force you hard drive to operate in PIO mode even if it is a DMA ready drive)

Hope this helps

Grtz,

Herc