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 Post subject: 3par size not matching
PostPosted: Wed Feb 09, 2022 3:27 am 

Joined: Tue May 01, 2018 6:06 am
Posts: 18
Hello

I am new on san if you can help me, I have 3par virtual size 520G, reserved used user space 413G, used user size 78%, and in bare-metal rhel server show 430G, why not show 520G in bare-metal?


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 Post subject: Re: 3par size not matching
PostPosted: Wed Feb 09, 2022 4:36 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1399
Location: Europe
Phill wrote:
Hello

I am new on san if you can help me, I have 3par virtual size 520G, reserved used user space 413G, used user size 78%, and in bare-metal rhel server show 430G, why not show 520G in bare-metal?


Not sure where you're seing each number or what you're actually looking at. Could you provide some outputs or screenshots of the different numbers?

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 Post subject: Re: 3par size not matching
PostPosted: Wed Feb 09, 2022 4:44 am 

Joined: Tue May 01, 2018 6:06 am
Posts: 18
you can see in screenshot the virtual size 520G, reserved used user space 413G, but in my bare-metal server show 430G, my question is I need to increase my bare-metal space, so how i can make server see remaining space up to 520G ?


Last edited by Phill on Wed Feb 09, 2022 7:58 am, edited 1 time in total.

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 Post subject: Re: 3par size not matching
PostPosted: Wed Feb 09, 2022 5:17 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1399
Location: Europe
Phill wrote:
you can see in screenshot the virtual size 520G, reserved used user space 413G, but in my bare-metal server show 430G, my question is I need to increase my bare-metal space, so how i can make server see remaining space up to 520G ?


3PAR is block storage. The entire volume is presented to the host.

Are you seing 430G as device size or partition size?

edit: I think "lsblk" will give you some info in RHEL.

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 Post subject: Re: 3par size not matching
PostPosted: Wed Feb 09, 2022 5:26 am 

Joined: Tue May 01, 2018 6:06 am
Posts: 18
Yes you can see down on bare-metal server, this is version 5 not support lsblk
Code:
 
PV                                       VG    Fmt   Attr   PSize        PFree
 /dev/mpath/............3731           vgu06 lvm2   a--    430.00G      0


another question why virtual size 520G different than reserved used user space 413G?


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 Post subject: Re: 3par size not matching
PostPosted: Wed Feb 09, 2022 5:35 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1399
Location: Europe
Phill wrote:
Yes you can see down on bare-metal server, this is version 5 not support lsblk
Code:
 
PV                                       VG    Fmt   Attr   PSize        PFree
 /dev/mpath/............3731           vgu06 lvm2   a--    430.00G      0


another question why virtual size 520G different than reserved used user space 413G?


Your volume is Thin (provisioned).
Virtual size = volume size
Reserved size = The actual amout of data stored on the volume.

All I see from your output is partition size... not device size. My guess there is free/unpartitioned space on the device not used in RHEL.

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 Post subject: Re: 3par size not matching
PostPosted: Wed Feb 09, 2022 6:05 am 

Joined: Tue May 01, 2018 6:06 am
Posts: 18
Code:
fdisk -l  /dev/mpath/............3731

Disk /dev/mpath/............3731: 558.3 GB, 558345748480 bytes
255 heads, 63 sectors/track, 67881 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/mpath/............3731 doesn't contain a valid partition table

you can see it show 558GB which is different than what assigned in 3par, 520G why?


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 Post subject: Re: 3par size not matching
PostPosted: Wed Feb 09, 2022 6:10 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1399
Location: Europe
Phill wrote:
Code:
fdisk -l  /dev/mpath/............3731

Disk /dev/mpath/............3731: 558.3 GB, 558345748480 bytes
255 heads, 63 sectors/track, 67881 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/mpath/............3731 doesn't contain a valid partition table

you can see it show 558GB which is different than what assigned in 3par, why?


GiB/GB discussion.

520 * 1024 * 1024 * 1024 * 1024 = 558 345 748 480 Bytes.

520 GiB = 558.3 GB

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 Post subject: Re: 3par size not matching
PostPosted: Wed Feb 09, 2022 6:21 am 

Joined: Tue May 01, 2018 6:06 am
Posts: 18
thanks , so my issue now from host side only, but SAN fine,
do you know how i add remaining space up to 580G to VG with 430G


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