Greetings Mark, thank you for the confirmation. I suspected that this was dependant on the architecture.
From: Mark Post <mp...@suse.com> To: LINUX-390@VM.MARIST.EDU Date: 01/27/2017 06:23 PM Subject: Re: mkfs.btrfs not working on an unformatted device Sent by: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> >>> On 1/27/2017 at 09:24 AM, Michael J Nash <miken...@us.ibm.com> wrote: > Greetings Mark, thank you for your reply. > > I read this online at: > https://www.howtoforge.com/a-beginners-guide-to-btrfs#a-beginners-guide-to-btrfs- > This may be true for other platforms but I was asking if it held true for > S390. > A Beginner's Guide To btrfs > 3 Creating btrfs File Systems (RAID0, RAID1) > One great feature of btrfs is that you can create btrfs file systems on > unformatted hard drives, i.e., you don't have to use tools like fdisk to > partition a hard drive. What holds true for other architectures, does not hold true specifically for DASD on z Systems. Never, ever, use the base device of a DASD volume. You will get unexpected results and probably data loss. Mark Post ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
