cisco switch helpful commands
by
zemerdon »
Sun Oct 05, 2025 4:17 pm
» in
Cisco
backup config tftp
copy running-config tftp:
cisco show ip
show ip int
console connect
sudo screen /dev/ttyUSB0 9600
remove stack members...
0 Replies
7338 Views
Last post by zemerdon
Sun Oct 05, 2025 4:17 pm
helpful linux commands
Replies: 1
by
zemerdon »
Sat Jun 21, 2025 5:45 am
» in
Linux
watch with pipe
watch -n10 'df -ah | grep p4 '
list connected usb transfer rate
lspci -t
change linux startup/shutdown text size
run: sudo...
1 Replies
18498 Views
Last post by zemerdon
Tue Dec 09, 2025 4:15 pm
change ZFS hdd from dev to UUID
by
zemerdon »
Mon Jun 16, 2025 5:56 pm
In Linux, when working with ZFS and storage devices, it's generally recommended to use the ata-* or scsi-* paths within /dev/disk/by-id/ instead of...
0 Replies
1940 Views
Last post by zemerdon
Mon Jun 16, 2025 5:56 pm
ZFS wont remove old vdev
by
zemerdon »
Mon Jun 10, 2024 5:31 pm
ZFS status before fix
pool: zfs-raidz3
state: DEGRADED
status: One or more devices is currently being resilvered. The pool will
continue to...
0 Replies
59025 Views
Last post by zemerdon
Mon Jun 10, 2024 5:31 pm
ZFS zero out HDD
by
zemerdon »
Tue Jan 16, 2024 4:02 pm
Wiping the entire disk
This will overwrite all partitions, master boot records, and data. Use the sudo command as well (sudo dd...)
Filling the disk...
0 Replies
26974 Views
Last post by zemerdon
Tue Jan 16, 2024 4:02 pm
ZFS HDD bad block output
by
zemerdon »
Tue Jan 16, 2024 3:19 pm
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red
Device Model: WDC WD30EFRX-68EUZN0
Serial Number: WD-WCC4N6XZY08J
LU WWN...
0 Replies
26737 Views
Last post by zemerdon
Tue Jan 16, 2024 3:19 pm
ZFS HDD fix bad sectors
by
zemerdon »
Tue Jan 16, 2024 3:12 pm
Fix uncorrectable offline sectors on zfs
Intro
When a disk gets older, there may be some bad sectors on it. In fact every disk has bad sectors....
0 Replies
26253 Views
Last post by zemerdon
Tue Jan 16, 2024 3:12 pm
ZFS HDD force write bad sectors
by
zemerdon »
Tue Jan 16, 2024 2:46 pm
Force the disk to reallocate bad block
First you will want to see how many badblocks the harddrive is aware of through the smartctl command:
#...
0 Replies
25845 Views
Last post by zemerdon
Tue Jan 16, 2024 2:46 pm
HDD rewrite bad sectors
by
zemerdon »
Tue Jan 16, 2024 2:09 pm
I'd run a long selftest
smartctl -t long /dev/ada2
check the smart information for the unreadable sector, lets call it 'X'
smartctl -A...
0 Replies
25787 Views
Last post by zemerdon
Tue Jan 16, 2024 2:09 pm
0 Replies
26041 Views
Last post by zemerdon
Sat Jan 06, 2024 1:02 pm
ZFS tuning tips
by
zemerdon »
Sat Dec 23, 2023 5:55 pm
zfs set xattr=sa poolname
zfs set acltype=posixacl poolname
zfs set compression=lz4 poolname
zfs set atime=off poolname
zfs set relatime=off...
0 Replies
25703 Views
Last post by zemerdon
Sat Dec 23, 2023 5:55 pm
0 Replies
26594 Views
Last post by zemerdon
Fri Sep 15, 2023 10:08 am
0 Replies
28327 Views
Last post by zemerdon
Fri Sep 15, 2023 10:08 am
0 Replies
27194 Views
Last post by zemerdon
Sun Sep 03, 2023 12:03 pm
ZFS tweaking
by
zemerdon »
Wed May 24, 2023 5:49 pm
I'm going to take another stab at helping you understand what's going on. I'm really sorry my post is so long, but I'm sick today and lack the time &...
0 Replies
27513 Views
Last post by zemerdon
Wed May 24, 2023 5:49 pm
Forum permissions
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum