TUTORIAL: Extend SERVERware Standalone storage
Adding storage capacity is an essential step to meet the growing needs of your data and ensure business continuity. In this guide, we will explore the process of expanding storage by adding two identical disks, while preserving redundancy to ensure system reliability.
Carefully follow each step to optimize and maintain the performance of your SERVERware infrastructure.
Insert two new identical disks into the empty bays of the storage server. Since we wish to maintain storage redundancy, we systematically add two identical disks to expand the storage in the form of a redundant array. It is necessary to create a partition table on the new disks.
Before starting this procedure, it is essential to check the current state of the storage pool.
~# zpool status pool: NETSTOR state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM NETSTOR ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 NETSTOR1 ONLINE 0 0 0 NETSTOR2 ONLINE 0 0 0 errors: No known data errors In the previous example, you have two disks in the NETSTOR mirror pool.
A mirror configuration can be observed from the existing disks (mirror-0).
Now, it is necessary to determine which block the system device name has been assigned to for the new disks.
Please use the following command:
ls -lah /dev/disk/by-id Here is the output of the command:
Notice the highlighted lines (16 & 24).
total 0 drwxr-xr-x 2 root root 520 Srp 25 07:12 . drwxr-xr-x 7 root root 140 Srp 25 07:03 .. lrwxrwxrwx 1 root root 9 Srp 25 07:03 ata-INTEL_SSDSC2CW060A3_CVCV308402M3060AGN -> ../../sdc lrwxrwxrwx 1 root root 10 Srp 25 07:03 ata-INTEL_SSDSC2CW060A3_CVCV308402M3060AGN-part1 -> ../../sdc1 lrwxrwxrwx 1 root root 10 Srp 25 07:03 ata-INTEL_SSDSC2CW060A3_CVCV308402M3060AGN-part2 -> ../../sdc2 lrwxrwxrwx 1 root root 10 Srp 25 07:03 ata-INTEL_SSDSC2CW060A3_CVCV308402M3060AGN-part9 -> ../../sdc9 lrwxrwxrwx 1 root root 9 Srp 25 07:12 ata-ST31000520AS_5VX0BZN0 -> ../../sde lrwxrwxrwx 1 root root 9 Srp 25 07:03 ata-WDC_WD10JFCX-68N6GN0_WD-WX61A465TH1Y -> ../../sda lrwxrwxrwx 1 root root 10 Srp 25 07:03 ata-WDC_WD10JFCX-68N6GN0_WD-WX61A465TH1Y-part1 -> ../../sda1 lrwxrwxrwx 1 root root 9 Srp 25 07:03 ata-WDC_WD10JFCX-68N6GN0_WD-WX81EC512Y4H -> ../../sdb lrwxrwxrwx 1 root root 10 Srp 25 07:03 ata-WDC_WD10JFCX-68N6GN0_WD-WX81EC512Y4H-part1 -> ../../sdb1 lrwxrwxrwx 1 root root 9 Srp 25 07:12 ata-WDC_WD10JFCX-68N6GN0_WD-WXK1E6458WKX -> ../../sdd lrwxrwxrwx 1 root root 9 Srp 25 07:03 wwn-0x10076999618641940481x -> ../../sdb lrwxrwxrwx 1 root root 10 Srp 25 07:03 wwn-0x10076999618641940481x-part1 -> ../../sdb1 lrwxrwxrwx 1 root root 9 Srp 25 07:03 wwn-0x11689569317835657217x -> ../../sda lrwxrwxrwx 1 root root 10 Srp 25 07:03 wwn-0x11689569317835657217x-part1 -> ../../sda1 lrwxrwxrwx 1 root root 9 Srp 25 07:12 wwn-0x11769037186453098497x -> ../../sdd lrwxrwxrwx 1 root root 10 Srp 25 07:12 wwn-0x11769037186453098497x-part1 -> ../../sdd1 lrwxrwxrwx 1 root root 9 Srp 25 07:03 wwn-0x12757853320186451405x -> ../../sdc lrwxrwxrwx 1 root root 10 Srp 25 07:03 wwn-0x12757853320186451405x-part1 -> ../../sdc1 lrwxrwxrwx 1 root root 10 Srp 25 07:03 wwn-0x12757853320186451405x-part2 -> ../../sdc2 lrwxrwxrwx 1 root root 10 Srp 25 07:03 wwn-0x12757853320186451405x-part9 -> ../../sdc9 lrwxrwxrwx 1 root root 9 Srp 25 07:12 wwn-0x7847552951345238016x -> ../../sde lrwxrwxrwx 1 root root 10 Srp 25 07:12 wwn-0x7847552951345238016x-part1 -> ../../sde1 Now that you have a block device name, you have the option to create a partition table, partition, and prepare the disk for use.
The use of '''parted''' is recommended to create a partition table for the new logical drives.
parted /dev/sde --script -- mktable gpt parted /dev/sdd --script -- mktable gpt Create a new label.
IMPORTANT: the label must be named according to the following format: NETSTORx. Where “NETSTOR” comes from the server storage and “x” represents the disk number.
Thus, in our example (NETSTOR3):
NETSTOR – this means a virtual pool on the storage server
[ 3 ] – this is the disk number (disk 3)
Now, add a label to the new disks.
parted /dev/sde --script -- mkpart "NETSTOR3" 1 -1 parted /dev/sdd --script -- mkpart "NETSTOR4" 1 -1 Now, you need to expand your pool with new logical drives.
It is necessary to act with caution when using this command. Make sure to verify the logical drive names to ensure their accuracy.
zpool add NETSTOR mirror /dev/disk/by-partlabel/NETSTOR3 /dev/disk/by-partlabel/NETSTOR4 -f Now, in the zpool, you should observe the addition of the logical volume:
zpool status pool: NETSTOR state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM NETSTOR ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 NETSTOR1 ONLINE 0 0 0 NETSTOR2 ONLINE 0 0 0 mirror-1 ONLINE 0 0 0 NETSTOR3 ONLINE 0 0 0 NETSTOR4 ONLINE 0 0 0 errors: No known data errors Now restart the swhspared service to update the GUI information.
/etc/init.d/swhspared restart Your new disk is now ready.
