UNIX for Dummies Questions & Answers

Thanks.... c0t0d0 is the boot and is not include in the RAID. Need the space for program + oracle databases (large partitions due to med. network node build + collecting 30 days data on nodes)


I have played around and managed to create database replicas, and a RAID5 metadevice.

(I just picked 4 slices from 4 drives and created the metadevice for practice to get a feel for it).

# metastat
d10: RAID
State: Okay
Interlace: 64 blocks
Size: 62364843 blocks
Original device:
Size: 62365632 blocks
Device Start Block Dbase State Hot Spare
c0t1d0s6 3539 Yes Okay
c1t1d0s6 3539 Yes Okay
c1t2d0s6 3539 Yes Okay
c1t3d0s6 3539 Yes Okay


VFSTAB FILE:
# more vfstab
#device device mount FS fsck mount mount
#to mount to fsck point type pass at boot options
#
#/dev/dsk/c1d0s2 /dev/rdsk/c1d0s2 /usr ufs 1 yes -
fd - /dev/fd fd - no -
/proc - /proc proc - no -
/dev/dsk/c0t0d0s1 - - swap - no -
/dev/dsk/c0t0d0s0 /dev/rdsk/c0t0d0s0 / ufs 1 no
-
/dev/dsk/c0t0d0s6 /dev/rdsk/c0t0d0s6 /usr ufs 1 no
-
/dev/dsk/c0t0d0s3 /dev/rdsk/c0t0d0s3 /var ufs 1 no
-
/dev/dsk/c0t0d0s7 /dev/rdsk/c0t0d0s7 /export/home ufs 2
yes -
/dev/dsk/c0t0d0s5 /dev/rdsk/c0t0d0s5 /opt ufs 2 yes
-
swap - /tmp tmpfs - yes -
/dev/md/dsk/d10 /dev/md/rdsk/d10 /var/mail ufs 2 yes
-

_____________________________

Last line shows "d10" metadevice. I wanted to combine these partitions and create 1 partition (/db01).

How do I call this partition db01 and mount? I tried "/" and "/db01" in the vfstab file for mount point and it did not show up.

I have it mounting /var/mail (from someone else's example and it worked).
# df -k
Filesystem kbytes used avail capacity Mounted on
/dev/dsk/c0t0d0s0 4032504 63092 3929087 2% /
/dev/dsk/c0t0d0s6 4032504 800571 3191608 21% /usr
/proc 0 0 0 0% /proc
fd 0 0 0 0% /dev/fd
mnttab 0 0 0 0% /etc/mnttab
/dev/dsk/c0t0d0s3 4032504 114020 3878159 3% /var
swap 15718944 16 15718928 1% /var/run
swap 15719560 632 15718928 1% /tmp
/dev/dsk/c0t0d0s5 5773212 2133 5713347 1% /opt
/dev/dsk/c0t0d0s7 5040814 385457 4604949 8% /export/home
/dev/md/dsk/d10 30696394 9 30389422 1% /var/mail

__________________

Once I figure out how to do one metadevice (db01), I plan to create (db02,03, 04).

Also how can I access the new /db01 to install files?

Currently mounted to /var/mail/ and mail folder properties report 512 kb? But df -k reports full amount?

Please help again.

? do you already have the directory ?
mkdir /db01; mount -F ufs /dev/md/dsk/d10 /db01
you also have to create a new filesystem on the metadevice first..
newfs /dev/md/rdsk/d10
or would you like to create logical partitions?

greetings Preßy

I created new fs but forgot to mkdir db01!!!!

Thanks. Worked great.

Thanks so much for the help. Partitions set up....

Could not have done it without u guys.....thanks again.

For those following this post......in an effort to give something back......this was my outcome.....I hope it helps for future searches and questions.


Thanks again to all.

___________________________________

Storedge Multipack Setup:

Need the following minimum partitions using 6 disk array:

db01 8GB
db02 16 GB
db03 90 GB
db04 70 GB

First disk in array = c1t1d0
Last disk in array = c1t6d0


Disk 1-6 Slices partitioned (Concatenation) in the following manner:

S0 Database replica (20Mb) (plenty for future)
s1 unassigned
s2 unassigned
s3 unassigned
s4 db01 (smallest) /db01 (2 GB)
s5 db02 /db02 (3GB)
s6 db04 /db04 (12.8GB)
s7 db03 (Largest) /db03 (16 GB)



Disk 1 on array will be manually partitioned using the format command and set to the above partitions.
The partition Table from disk1 will then be duplicated to the remaining 5 disks.


prtvtoc /dev/rdsk/c1t1d0s2 | fmthard -s - /dev/rdsk/c1t2d0s2
(this will copy table from Disk1 to Disk2)

Or write vtoc to file:

prtvtoc -h /dev/rdsk/cxtxd0s2 > /export/home/vtoc_disk1

Edit the file: Delete last 2 columns (delete only 1 column if directory not listed)

fmthard -s /export/home/vtoc_disk1 /dev/rdsk/cxtxd0s2



Create Database Replica's: ( 1 on each disk)
metadb -a -f c1t1d0s0 c1t2d0s0 c1t3d0s0 c1t4d0s0 c1t5d0s0 c1t6d0s0

Check Replica's:

metadb -i

Create Metadevices (d10,d20,d30,d40):

metainit d10 6 1 c1t1d0s4 1 c1t2d0s4 1 c1t3d0s4 1 c1t4d0s4 1 c1t5d0s4 1 c1t6d0s4
metainit d20 6 1 c1t1d0s5 1 c1t2d0s5 1 c1t3d0s5 1 c1t4d0s5 1 c1t5d0s5 1 c1t6d0s5
metainit d40 6 1 c1t1d0s6 1 c1t2d0s6 1 c1t3d0s6 1 c1t4d0s6 1 c1t5d0s6 1 c1t6d0s6
metainit d30 6 1 c1t1d0s7 1 c1t2d0s7 1 c1t3d0s7 1 c1t4d0s7 1 c1t5d0s7 1 c1t6d0s7

Creating a File System on the Concatenation:

newfs /dev/md/rdsk/d10
newfs /dev/md/rdsk/d20
newfs /dev/md/rdsk/d30
newfs /dev/md/rdsk/d40

fsck /dev/md/rdsk/d10
fsck /dev/md/rdsk/d20
fsck /dev/md/rdsk/d30
fsck /dev/md/rdsk/d40

Check Metadevices:

metastat

Make directories in /:

mkdir db01 db02 db03 db04

Add mounts to vfstab file:

/dev/md/dsk/d10 /dev/md/rdsk/d10 /db01 ufs 2 yes -
/dev/md/dsk/d20 /dev/md/rdsk/d20 /db02 ufs 2 yes -
/dev/md/dsk/d30 /dev/md/rdsk/d30 /db03 ufs 2 yes -
/dev/md/dsk/d40 /dev/md/rdsk/d40 /db04 ufs 2 yes -

Mount Logical Partitions:

shutdown -i6 -g0 -y

or

mount /dev/md/dsk/d10 /db01
mount /dev/md/dsk/d20 /db02
mount /dev/md/dsk/d30 /db03
mount /dev/md/dsk/d40 /db04

Check mounts and partitions:

df -k

______________________________________________
______________________________________________

*****Only If Needed

To delete metadevices: Unmount partitions:

# umount /dev/md/dsk/d40
# umount /dev/md/dsk/d30
# umount /dev/md/dsk/d20
# umount /dev/md/dsk/d10

**Remove entries rom /ect/vfstab file.

Delete metadevices:

# metaclear d10 d20 d30 d40
d10: Concat/Stripe is cleared
d20: Concat/Stripe is cleared
d30: Concat/Stripe is cleared
d40: Concat/Stripe is cleared

Check deletion:
metastat

Delete Database Replicas:

metadb -f -d c1t1d0s0 c1t2d0s0 c1t3d0s0 c1t4d0s0 c1t5d0s0 c1t6d0s0
(-f force, -d delete)

Check deletion:
metadb -i