On 2/3/20 3:13 PM, Laurent Wandrebeck wrote:
Hi,
Ext4 is (slowly) initializing group blocks as far as I can remember. Patience
should do the trick :)
Indeed. See the manpage for mkfs.ext4 and scroll down to the "lazy_itable_init"
extended option, which is enabled by default.
--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.
Le 3 février 2020 20:28:27 GMT+01:00, Chris Pemberton <pchris....@gmail.com> a
écrit :
I updated my backup server this weekend from CentOS 7 to CentOS 8.
OS disk is SSD, /dev/md0 are two 4TB WD mechanical drives.
No hardware was changed.
1. wiped all drives
2. installed new copy of 8 on system SSD
3. re-created the 4TB mirror /dev/md0 with the same WD mechanical
drives
4. created the largest single partition possible on /dev/md0 and
formatted
it ext4
5. waited several hours for the creation of /dev/md0 to finish
6. copied all data back onto /dev/md0
Both installs were a full workstation, with Gnome.
The mirror is mounted via fstab as:
/dev/md0 /mnt/raid1 ext4 defaults 0 0
Under CentOS 7 the /dev/md0 mirror was silent when not in use. Now
under
8, the hard drives are constantly "pinged" by some process, at about
the
same frequency as a heartbeat monitor. I can not figure out what
process
is keeping them active. iotop does show a process named
[ext4lazyinput].
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