How to view disk blocksize with powershell

PS C:\> $wql = "SELECT Label, Blocksize, Name FROM Win32_Volume WHERE FileSystem='NTFS'"

PS C:\> Get-WmiObject -Query $wql -ComputerName '.' | Select-Object Label, Blocksize, Name

How to find hba information in linux

cat /sys/class/fc_host/host[0-9]*/port_name

cat /sys/class/fc_host/host1/port_name
cat /sys/class/fc_host/host2/port_name

How to create logical volumes in linux

This example procedure creates an LVM logical volume called new_logical_volume that consists of the disks at /dev/sda1, /dev/sdb1, and /dev/sdc1.

1. To use disks in a volume group, label them as LVM physical volumes with the pvcreatecommand.
   WARNING

   This command destroys any data on /dev/sda1, /dev/sdb1, and /dev/sdc1.

   # pvcreate /dev/sda1 /dev/sdb1 /dev/sdc1
     Physical volume "/dev/sda1" successfully created
     Physical volume "/dev/sdb1" successfully created
     Physical volume "/dev/sdc1" successfully created
   

2. #Another Example:
   
   pvcreate /dev/mapper/mpathx
   

3. Create the a volume group that consists of the LVM physical volumes you have created. The following command creates the volume group new_vol_group.

   # vgcreate new_vol_group /dev/sda1 /dev/sdb1 /dev/sdc1
     Volume group "new_vol_group" successfully created
   

   You can use the vgs command to display the attributes of the new volume group.

   # vgs
     VG            #PV #LV #SN Attr   VSize  VFree
     new_vol_group   3   0   0 wz--n- 51.45G 51.45G
   

4. Create the logical volume from the volume group you have created. The following command creates the logical volume new_logical_volume from the volume group new_vol_group. This example creates a logical volume that uses 2 gigabytes of the volume group.

   # lvcreate -L 2 G -n new_logical_volume new_vol_group
     Logical volume "new_logical_volume" created

5. 
   
   #Another Example:
   
    lvcreate -l 100%FREE -n new_logical_volume new_vol_group
   
   
   

6. Create a file system on the logical volume. The following command creates a GFS2 file system on the logical volume.

   # mkfs.gfs2 -p lock_nolock -j 1 /dev/new_vol_group/new_logical_volume
   This will destroy any data on /dev/new_vol_group/new_logical_volume.
   
   Are you sure you want to proceed? [y/n] y
   
   Device:                    /dev/new_vol_group/new_logical_volume
   Blocksize:                 4096
   Filesystem Size:           491460
   Journals:                  1
   Resource Groups:           8
   Locking Protocol:          lock_nolock
   Lock Table:
   
   Syncing...
   All Done
   
   #Another Example:
   
   mkfs.xfs /dev/vgx/lgx
   mkfs.xfs /dev/mapper/vg..

   The following commands mount the logical volume and report the file system disk space usage.

   # mount /dev/new_vol_group/new_logical_volume /mnt
   # df
   Filesystem           1K-blocks      Used Available Use% Mounted on
   /dev/new_vol_group/new_logical_volume
                          1965840        20   1965820   1% /mnt
   

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Logical_Volume_Manager_Administration/LVM_examples.html






Fiziksel diskler atandıktan sonra scan işlemi yapılır


echo "- - -" > /sys/class/scsi_host/host0/scan
echo "- - -" > /sys/class/scsi_host/host1/scan
echo "- - -" > /sys/class/scsi_host/host2/scan


fdisk -l ile disklerin mpathx bilgileri not edilir


[root@servername /]# pvcreate /dev/mapper/mpathae /dev/mapper/mpathaf
  Physical volume "/dev/mapper/mpathae" successfully created
  Physical volume "/dev/mapper/mpathaf" successfully created


[root@servername /]# vgcreate vg11 /dev/

[root@servername /]#  lvcreate -l 100%FREE -n BACKUP vg11


cd /
mkdir BACKUP mount klasörünü oluşturuyoruz


mkfs.xx ile filesystem oluşturuyoruz


[root@servername /]# mkfs.ext4 /dev/vg11/BACKUP
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=8 blocks, Stripe width=8 blocks
335544320 inodes, 2684352512 blocks
134217625 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
81920 block groups
32768 blocks per group, 32768 fragments per group
4096 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
        102400000, 214990848, 512000000, 550731776, 644972544, 1934917632,
        2560000000


Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done




Oluşturulan filesystemi mount ediyoruz
[root@servername /]# mount /dev/mapper/vg11-BACKUP /BACKUP/




Boot sonrasında da aktif olması için /etc/fstab dosyasını düzenliyoruz.


[root@servername /]# vi /etc/fstab


#
# /etc/fstab
# Created by anaconda on Tue Jul 11 10:39:36 2017
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#


/dev/mapper/vg11-BACKUP /BACKUP auto defaults 0 0

How to find a file in linux

find / |grep filename

NetBackup / unable to NB_read_master_config(): Cannot find the NetBackup configuration information (110)

/usr/openv/netbackup/bin/goodies/netbackup

unable to NB_read_master_config(): Cannot find the NetBackup configuration information (110)

EXIT status = 110

NetBackup network daemon started.

unable to NB_read_master_config(): Cannot find the NetBackup configuration information (110)

EXIT status = 110

NetBackup client daemon started.

NetBackup SAN Client Fibre Transport daemon started.

NetBackup Discovery Framework started.

NetBackup Bare Metal Restore Boot Server daemon started.

bp.conf dosyası temiz bir sistemden kopyalanarak servisler çalıştırılabilir

Able to restart Netbackup successfully after copying a good bp.conf from another similar media server to this media server.

https://www.veritas.com/support/en_US/article.000014992