Re: Power management for SCSI

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, 13 Aug 2008, Leisner, Martin wrote:

> Regarding these scsi suspend patches, there's a general
> problem to drop power on disk devices on a running system.
> I discussed it in:
> 
> http://www.gossamer-threads.com/lists/linux/kernel/811598

There's a much worse problem which that thread completely ignored:

When you turn off power to a disk device, to the system it looks like a 
hot-unplug event.  Any mounted filesystems or memory mappings on that 
disk will be lost.

Alan Stern

_______________________________________________
linux-pm mailing list
linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linux-foundation.org/mailman/listinfo/linux-pm

[Index of Archives]     [Linux ACPI]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [CPU Freq]     [Kernel Newbies]     [Fedora Kernel]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux