On Wed, Dec 7, 2016 at 2:56 AM, Per Jessen
Greg Freemyer wrote:
On Tue, Dec 6, 2016 at 2:46 AM, Per Jessen
wrote: Greg Freemyer wrote:
Got my Drobo today. So far I'm not impressed.
Pros:
I plugged in 8 1TB drives and it saw them and let me thin provision a 16TB volume.
That sounds like a major pro (or con) - 16Tb with only 8Tb space :-) I guess it automagically dealt with RAID levels and such?
Thin provisioning works like that, and yes as I think about it, it is a major pro.
Okay, I thought it was a typo - with LVM, thin provisioning just means the space isn't all allocated, but I doubt if you can allocate a volume that is bigger than what is available in a PV. Well, it has never occurred to me to try it :-) I usually allocate what I need, then extend later on when needed.
A cool thin provisioning feature I just noticed. This is with a Windows 10 client over iSCSI. I populated about 3TB of data onto the volume yesterday, composed of about 1 million files. Today I deleted them and my overall array usage dropped. That means the SCSI commands to unallocate (or erase) unused sectors was issued to the Drobo and the Drobo actually removed the sectors from the allocated data blocks. I'm extremely surprised that happened. I wasn't even trying to test it. I just noticed that my overall data usage dropped on the Drobo when I did a large folder delete. I need to setup a iSCSI volume for openSUSE to access, but at least for now as soon as I create a new iSCSI volume via the user interface, it gets accessed by that Windows PC. I'll try to do some more experimenting. Greg -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org