CentOS - May 2019 - is 'list_del corruption' fix available in Centos ?

Warren Young wrote:
> On May 17, 2019, at 9:53 AM, John Hodrien <J.H.Hodrien at
leeds.ac.uk>
> wrote:
>> On Fri, 17 May 2019, James Szinger wrote:
>>> On Fri, May 17, 2019 at 3:17 AM John Hodrien
>>> <J.H.Hodrien at leeds.ac.uk> wrote:
>>>
>>>> RHEL advice would clearly be not to use btrfs.
>>>
>>> I'm curious, is there anything in RHEL 8 that would replace
BTRFS or
>>> ZFS?  I'm experimenting with BTRFS on one system and the
snapshot and
>>> subvolume features are nice.
>>
>> I assume Stratis is the general answer.
>>
> It looks like built-in RAID didn?t land in this version, which means
> we?re another 3-5 years from anything that actually works like ZFS or
> btrfs which are LVM + RAID + filesystem.
>
> According to the docs, you have to lay Stratis over MDRAID in EL8 to get
> storage redundancy:
>
<snip>
I followed the link, and was reading, and I'm confused.
1. How is this different than LVM?
2. Why would you want to put it on top of LVM?

      mark "Please don't tell me 'because you can point and
click'"

> Am 17.05.2019 um 19:26 schrieb mark <m.roth at 5-cent.us>:
> 
> Warren Young wrote:
>> On May 17, 2019, at 9:53 AM, John Hodrien <J.H.Hodrien at
leeds.ac.uk>
>> wrote:
>>> On Fri, 17 May 2019, James Szinger wrote:
>>>> On Fri, May 17, 2019 at 3:17 AM John Hodrien
>>>> <J.H.Hodrien at leeds.ac.uk> wrote:
>>>> 
>>>>> RHEL advice would clearly be not to use btrfs.
>>>> 
>>>> I'm curious, is there anything in RHEL 8 that would replace
BTRFS or
>>>> ZFS?  I'm experimenting with BTRFS on one system and the
snapshot and
>>>> subvolume features are nice.
>>> 
>>> I assume Stratis is the general answer.
>>> 
>> It looks like built-in RAID didn?t land in this version, which means
>> we?re another 3-5 years from anything that actually works like ZFS or
>> btrfs which are LVM + RAID + filesystem.
>> 
>> According to the docs, you have to lay Stratis over MDRAID in EL8 to
get
>> storage redundancy:
>> 
> <snip>
> I followed the link, and was reading, and I'm confused.
> 1. How is this different than LVM?
> 2. Why would you want to put it on top of LVM?
> 
And more important - its a "Technology Preview" ...

--
LF

Reading the FAQ on Stratis, it appears to be a modified XFS file system
that pools freespace, but also appears to be a long LONG ways from being
something I'd do anything with other than poke at in a lab.



-- 
-john r pierce
  recycling used bits in santa cruz