"best practices" for using a small SSD boot drive and a big regular one?
Am 14.07.2012 12:47, schrieb Roberto Ragusa:
> On 07/14/2012 11:55 AM, Robert P. J. Day wrote:
>> On Sat, 14 Jul 2012, Heinz Diehl wrote:
>>> On 14.07.2012, Joe Zeff wrote:
>>>> Not swap. If you really need swap, it gets written to over and over, which
>>>> isn't exactly the best thing for an SSD.
>>> My thoughts were that nowadays, on laptops with a fairly amount of
>>> RAM, swap gets mainly used for hibernating, and I think it will be a
>>> significant advantage to have the memory image recovered from the
>>> fastest disk in the system.
>> oh, right, *that's* why i want swap. :-)
> If your rotating disk will always be connected, you may want to have
> a unique VG across both the SSD and the HD, so you can move partitions
> across them and have more flexibility.
> For example, if you realize to need some more space on a SSD filesystem,
> you still have to ability to enlarge the partition into the HD and cope with
> a partially-here/partially-there layout.
> This road can lead to very interesting tricks, such as having the
> journal and metadata on SSD and actual data on HD.
and what happens if ONE drive fails?
colume groups over different drives are a VERY bad idea
as long LVM does not sit on top of a RAID!
having as example a LVM over 3 drives makes it 3 times
more possible to lose the whole volume groups data
if one drive goes down
this is the same as for RAID0: do it only if it does
not bother you losing your data!
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