topic Re: Need Help LV extend in Operating System - HP-UX

Need Help LV extend

MCC_Nancy — Wed, 15 May 2024 04:46:41 GMT

Any Guru in here,

I need help, verification and try to gain self-confidence {me} - scare of soul of me working this critical system. I took over our unix server by default after our SA quit. However, one of file folder is now 91% full. I would like to extend this lv and file folder. The command below,: Are correct and good to go for me to execute?

# vgdisplay -v /dev/vg01

--- Volume groups ---

VG Name /dev/vg01

VG Write Access read/write

VG Status available

Max LV 511

Cur LV 9

Open LV 9

Max PV 511

Cur PV 3

Act PV 3

Max PE per PV 262144

VGDA 6

PE Size (Mbytes) 16

Total PE 262144 = 4,194,304 mgb = 4.19 (TB)

Alloc PE 160645 = 2,570,320 mgb = 2.57 (TB)

Free PE 101499 = 1,623,984 mgb = 1.62 (TB) available

Total PVG 0

Total Spare PVs 0

Total Spare PVs in use 0

VG Version 2.0

VG Max Size 4t

VG Max Extents 262144

# lvdisplay /dev/vg01/lv_ordp1

--- Logical volumes ---

LV Name /dev/vg01/lv_ordp1

VG Name /dev/vg01

LV Permission read/write

LV Status available/syncd

Mirror copies 0

Consistency Recovery MWC

Schedule parallel

LV Size (Mbytes) 1843184 = 1,843,184 mgb = 1.84 (TB)

Current LE 115199 = 115199 * 16 (PE by mgb) = 1,843,184 mgb = 1.84 (TB)

Allocated PE 115199

Stripes 0

Stripe Size (Kbytes) 0

Bad block NONE

Allocation strict

IO Timeout (Seconds) default

What I need to do:

Current LE and Allocated PE 115199 (mgb) * 16 (PE by mgb) = 1,843,184 mgb = 1.84 Terabytes
Increase Current LE and Allocated PE from 115199 (mgb) + 10,000 (mgb) = 125199 (mgb) * 16 (PE by mgb) = 2,003,184(mgb) = 2.0 (Tbytes)
Total Increase is 160,000(mgb) = 60(gbytes)

I do have Online JFS in the system.

Command I need to execute:

Goal: Extend the size of this /dev/vg01/lv_ordp1 1887420416 1707272594 168888814 91% /ordatap1

#lvextend -L 125199 /dev/vg01/lv_ordp1

#fsadm -F vxfs -b 125199M /ordatap1

Thank you so much!

Nancy

Re: Need Help LV extend

shuff — Tue, 14 May 2024 23:58:31 GMT

The commands you have proposed for extending the logical volume and resizing the filesystem on your Unix server with Online JFS are correct. The command lvextend -L 125199 /dev/vg01/lv_ordp1 will extend the logical volume to the specified size. Following this, the command fsadm -F vxfs -b 125199M /ordatap1 will resize the filesystem to match the new size of the logical volume. However, there are a few considerations to keep in mind:

Ensure Sufficient Space: Before running these commands, verify that there is enough free space in the volume group to accommodate the extension.
Backup Important Data: Although these operations are generally safe, it is always a good practice to back up important data before making changes to disk partitions and filesystems.
Monitor System Logs: Keep an eye on system logs for any error messages during the process. This can help in quickly identifying and resolving any issues that may arise.
Defragmentation: After resizing, consider running a defragmentation process using fsadm to optimize the filesystem performance.

Re: Need Help LV extend

MCC_Nancy — Thu, 16 May 2024 04:58:44 GMT

@shuff shuff,

Thank you so much!!!!! I do have a good backup in place. About the Group Volume , I think I have enough space to extend to 60 GB for now (currently Group Volume has Free PE 101499 = 1,623,984 mgb = 1.62 (TB) available). This is the part I am struggle to comprehend if I do the right thing in calculation.

-- Volume groups ---

VG Name /dev/vg01

VG Write Access read/write

VG Status available

Max LV 511

Cur LV 9

Open LV 9

Max PV 511

Cur PV 3

Act PV 3

Max PE per PV 262144

VGDA 6

PE Size (Mbytes) 16

Total PE 262144 = 4,194,304 mgb = 4.19 (TB)

Alloc PE 160645 = 2,570,320 mgb = 2.57 (TB)

Free PE 101499 = 1,623,984 mgb = 1.62 (TB) available

Total PVG 0

Total Spare PVs 0

Total Spare PVs in use 0

VG Version 2.0

VG Max Size 4t

VG Max Extents 262144

Once again, thank you so much and what relieved for me.....

Nancy