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03-19-2012 03:22 PM
03-19-2012 03:22 PM
Dear Experts,
Server details as follows: ia64 hp server rx3600 and hp eva4000 san storage
Please help me out as am a newbie want to know about the functionality or the management of these below logical drives or the disk space available in local server and san storage.
1)From the below result logical drive size shows 279960 MB equals to 273.39 GB, from where this space has been calculated? as the local server has 4 disk each of 146.8 which in total around 587.2 GB.
Logical Drive Summary:
---- LOGICAL DRIVE 0 ----
Logical Drive Device File........... /dev/dsk/c0t0d0
Fault Tolerance Mode................ RAID 5 (Distributed Data Guarding)
Logical Drive Size.................. 279960 MB
Logical Drive Status................ OK
---- SAS/SATA DEVICE SUMMARY ----------------
Location Ct Enc Bay WWID Type Capacity Status
internal 2I 1 8 0x5000c500235b646d DISK 146.8 GB OK
internal 2I 1 7 0x5000c500235df251 DISK 146.8 GB OK
internal 2I 1 6 0x5000c500235e1449 DISK 146.8 GB OK
internal 2I 1 5 0x5000c500235d1425 DISK 146.8 GB SPARE
main concern is about the below file system in the server, which space has been used for the below partitions created in the server, is it either from logical drive space i.e. 273.39 GB or from those 4 disk 587.2 GB.
File System layout
LVM Device file mount point size fs type
/dev/vg00:
/dev/vg00/lvol1 /stand 1792 vxfs
/dev/vg00/lvol2 swap 8192
/dev/vg00/lvol3 / 1024 vxfs
/dev/vg00/lvol4 /tmp 512 vxfs
/dev/vg00/lvol5 /home 128 vxfs
/dev/vg00/lvol6 /opt 8832 vxfs
/dev/vg00/lvol7 /usr 5824 vxfs
/dev/vg00/lvol8 /var 8704 vxfs
/dev/vg00/lvo19 /u01 61440 vxfs
/dev/vg00/lvo20 /backup 61440 vxfs
/dev/vg00/lvo21 12288 unused ------> what this space?
/dev/vg00 unallocated 108864 -----------> what about this space?can we use this?
2)Below the detail of swap space
Check for memory and swap
Kb Kb Kb PCT START/ Kb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 8388608 1890012 6498596 23% 0 - 1 /dev/vg00/lvol2
reserve - 6498576 -6498576
memory 15926564 10027756 5898808 63%
Swap configuration
type size priority device/location
dev 8192 1 /dev/vg00/lvol2
If we want to increase the size of swap then upto how much of size it is recommended and from where we can take the space to increase the size of swap.
3)About SAN Storage, below are some details.
SQL> select name, state, type, total_mb, free_mb from v$asm_diskgroup;
NAME STATE TYPE TOTAL_MB FREE_MB
------------------------------ ----------- ------ ---------- ----------
DATA CONNECTED EXTERN 409600 305429
FLASH_RECOVERY MOUNTED EXTERN 409600 226385
select name, path, group_number, TOTAL_MB, FREE_MB from v$asm_disk order by 3;
NAME PATH GROUP_NUMBER TOTAL_MB FREE_MB
-------------------- -------------------- ------------ ---------- ----------
/dev/rdisk/disk43 0 0 0
/dev/rdisk/disk42 0 0 0
/dev/rdisk/disk44 0 0 0
DATA_0001 /dev/rdisk/disk46 1 204800 152714
DATA_0000 /dev/rdisk/disk45 1 204800 152715
FLASH_RECOVERY_0000 /dev/rdisk/disk47 2 204800 110890
FLASH_RECOVERY_0001 /dev/rdisk/disk48 2 204800 110855
-How i can check the total space available in the san storage, how much the space has been used and how much is left. From the above results it shows that 2 partition each of 200GB has been created for database files, 2 for fra, and other 5 each of 4Gb for voting disk and ocr. Here i want to know why 2 partitions has been created for dbfiles, is not possible to make one part with 400GB instead of 2 virtual partion which anyhow showing as one part only as a DATA.
Will be really grateful and thankful if you could please help me out to get the clear idea about the storage stucture of local server and of san.
Awaiting for your kind reply.
Best Regards
Solved! Go to Solution.
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03-19-2012 05:08 PM - edited 03-19-2012 05:14 PM
03-19-2012 05:08 PM - edited 03-19-2012 05:14 PM
Re: Storage Management In HP-UX
1)From the below result logical drive size shows 279960 MB equals to 273.39 GB, from where this space has been calculated? as the local server has 4 disk each of 146.8 which in total around 587.2 GB.
-> From the report you provided, it looks like 1 of 4 146GB disks is reserved as a "spare", then the remaining 3 are configured as RAID5. RAID5 uses 1 of 3 disks as parity, so that explains roughly 292GB useable.
/dev/vg00/lvo21 12288 unused ------> what this space?
-> Does above show up in bdf?
/dev/vg00 unallocated 108864 -----------> what about this space?can we use this?
-> Yes, you can use this space, but for "swap", it has to be contiguous.
Please provide:
# bdf
# cat /etc/fstab
# ioscan -fun
# ioscan -funC disk
# vgdisplay -v
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03-19-2012 10:07 PM - edited 03-19-2012 10:37 PM
03-19-2012 10:07 PM - edited 03-19-2012 10:37 PM
Re: Storage Management In HP-UX
Dear Henry,
Thanks for prompt reply, please find attached the result of all requested cammonds.
Awaiting for your valuable reply.
Regards
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03-19-2012 10:51 PM
03-19-2012 10:51 PM
SolutionYour 4 internal disks are connected to a P400 smartarray controller:
ext_bus 0 0/6/0/0/0/0/4/0/0/0 ciss CLAIMED INTERFACE PCIe SAS SmartArray P400 RAID Controller
/dev/ciss0
you can get more information by running
# saconfig /dev/ciss0
# sautil /dev/ciss0
You have a RAID5 based on 4 disks, 1 as spare, so you have round about the capacity of 2*146GB - this is what you have.
From the vgdisplay output you see
PE Size (Mbytes) 64
Free PE 1701
so you have 108864MB free in vg00.
Do the same calculation for the EVA based VGs.
Hope this helps!
Regards
Torsten.
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03-20-2012 12:07 AM
03-20-2012 12:07 AM
Re: Storage Management In HP-UX
Dear Torsten,
Thanks for the reply.
-- Do the same calculation for the EVA based VGs.
As am a newbie will be really grateful if you could please let me know the cammonds with which i can gather info from EVA based vgs.
And from you below detail it shows that i have around 106GB in the local server, so can i use that space for swap area as you see the size of swap area is 8Gb, need to double the size of swap, can i? if yes then what will be procedure to do so.
From the vgdisplay output you see
PE Size (Mbytes) 64
Free PE 1701
so you have 108864MB free in vg00.
---You have a RAID5 based on 4 disks, 1 as spare, so you have round about the capacity of 2*146GB - this is what you have.
So it means the sapce used for the below partitions is from those 2 disks 2*146GB = 292
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 1048576 267728 774840 26% /
/dev/vg00/lvol1 1835008 342792 1480632 19% /stand
/dev/vg00/lvol8 8912896 6960920 1940248 78% /var
/dev/vg00/lvol7 5963776 3024968 2915896 51% /usr
/dev/vg00/lvo19 62914560 32460169 28551121 53% /u01
/dev/vg00/lvol4 524288 40696 480968 8% /tmp
/dev/vg00/lvol6 9043968 6942136 2085536 77% /opt
/dev/vg00/lvol5 131072 5432 124664 4% /home
/dev/vg00/lvo20 62914560 46059925 15801354 74% /backup
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03-20-2012 12:20 AM
03-20-2012 12:20 AM
Re: Storage Management In HP-UX
Also from the below details gathered from san storage using amcmd and crs cammonds
ASMCMD> lsdg
State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Name
MOUNTED EXTERN N 1024 4096 1048576 409600 305429 0 305429 0 DATA/
MOUNTED EXTERN N 1024 4096 1048576 409600 221460 0 221460 0 FLASH_RECOVERY/
$ ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 4193836
Used space (kbytes) : 3864
Available space (kbytes) : 4189972
ID : 643548444
Device/File Name : /dev/rdisk/disk40
Device/File integrity check succeeded
Device/File Name : /dev/rdisk/disk41
Device/File integrity check succeeded
Cluster registry integrity check succeeded
$ crsctl query css votedisk
0. 0 /dev/rdisk/disk42
1. 0 /dev/rdisk/disk43
2. 0 /dev/rdisk/disk44
Located 3 voting disk(s).
From the eva it displays 5 disks each of 4GB allotted for voting disk and crs , other 4 disks each of 200GB, 2 disk for data and 2 disks for fra, which in total size is around 820Gb, but i want to know how much total storage size exist in the san, from which this 820 has been allotted.
Regards
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03-20-2012 12:23 AM
03-20-2012 12:23 AM
Re: Storage Management In HP-UX
PE Size (Mbytes) 64
Total PE 4360
Alloc PE 2659
170176MB allocated
279040MB total
There is also some space used for boot and diagnostics partition on the disks, not controlled by LVM.
Do you have other VG's configured?
Try
# vgdisplay -v
# vxdisk list
Hope this helps!
Regards
Torsten.
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03-20-2012 12:27 AM
03-20-2012 12:27 AM
Re: Storage Management In HP-UX
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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No support by private messages. Please ask the forum!
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