On 02/10/2013 12:43 PM, Dennis Gallien wrote:
Advice, please . . .
The default filesystem reserved blocks is 5%. IIRC that goes back a long time to when much smaller drives were in use. Is there a formula or rule-of-thumb now for today's large drives/partitions? I have quite a few 100-300GB partitions which I have tuned down to 3%, but it still seems I'm wasting a lot of space. Suggestions?
Hi Dennis, As I recall, the reserved blocks were used to improve read/write performance because it makes it easier to find contiguous blocks. I believe it also helped the fragmentation issue that plagued MS Windows systems. I don't think that modern journaled filesystems are as sensitive to fragmentation as they used to be. Another consideration that's saved my bacon on more than one occasion is that root processes can use 100% of the disk, while it's user access that's blocked. So, a user going bonkers and filling up a disk won't completely wedge the system. I'd guess you can reduce the percentage without any ill effects. Regards, Lew -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org