# Add Hard Disks > Add a new hard disk to storage pool. Add a new hard disk to storage pool. ### Accessing desired Node via SSH {#accessing-desired-node-via-ssh} Connect to the console of the node having a new hard disk. ```bash ssh admin@192.168.1.x Warning: Permanently added '192.168.1.x' (ECDSA) to the list of known hosts. Password: ``` ### Verify storage status before performing {#verify-storage-status-before-performing} Use command `storage > status`. _Demonstration shows the cluster has 16 osds._ _6 for cc1, 4 for cc2, 6 for cc3_ ```bash cc2> storage status cluster: id: c6e64c49-09cf-463b-9d1c-b6645b4b3b85 health: HEALTH_OK services: mon: 3 daemons, quorum cc1,cc2,cc3 (age 24h) mgr: cc1(active, since 24h), standbys: cc3, cc2 mds: 1/1 daemons up, 1 standby, 1 hot standby osd: 16 osds: 16 up (since 18h), 16 in (since 18h) rgw: 3 daemons active (3 hosts, 1 zones) data: volumes: 1/1 healthy pools: 25 pools, 945 pgs objects: 90.07k objects, 458 GiB usage: 1.3 TiB used, 4.5 TiB / 5.8 TiB avail pgs: 945 active+clean io: client: 101 KiB/s rd, 522 KiB/s wr, 24 op/s rd, 82 op/s wr ID HOST USED AVAIL WR OPS WR DATA RD OPS RD DATA STATE 0 cc1 55.4G 316G 9 52.7k 0 0 exists,up 1 cc1 91.9G 280G 9 39.1k 1 0 exists,up 2 cc1 70.9G 301G 9 52.0k 1 0 exists,up 3 cc1 64.9G 307G 1 15.1k 0 0 exists,up 4 cc1 67.5G 304G 1 16.7k 1 0 exists,up 5 cc1 72.6G 299G 4 133k 1 5824 exists,up 8 cc2 94.3G 277G 0 6553 1 0 exists,up 9 cc2 115G 256G 2 7782 0 0 exists,up 10 cc2 107G 264G 1 8192 0 0 exists,up 11 cc2 95.1G 277G 5 28.8k 1 0 exists,up 12 cc3 88.1G 284G 2 10.3k 1 0 exists,up 13 cc3 59.2G 313G 0 0 0 0 exists,up 14 cc3 70.5G 301G 14 68.0k 5 107k exists,up 15 cc3 64.4G 307G 1 28.0k 3 22.4k exists,up 16 cc3 70.4G 301G 0 0 1 16 exists,up 17 cc3 83.9G 288G 7 36.7k 0 0 exists,up ``` ### List all disks avilable for adding {#list-all-disks-avilable-for-adding} Use command `storage > list_avil`. ```bash cc2> storage list_avail index name size on_hours error serial -- 1 /dev/sdb 745.2G 69618 0 BTWA632602Q3800HGN -- Found 1 available disk. ``` ### Add a New Disk with Raw mode {#add-a-new-disk-with-raw-mode} Use command `storage > add_disk`. ```bash cc2> storage add_disk index name size on_hours error serial -- 1 /dev/sdb 745.2G 69618 0 BTWA632602Q3800HGN -- Found 1 available disk Enter the index to add this disk into the pool: 1 Disk protection mode: 1: raw 2: encrypt Enter index: 1 No disk encryption (default mode). Enter 'YES' to confirm: YES Added disk(raw) /dev/sdb. ``` ### Verify storage status {#verify-storage-status} The Cluster will provision two new OSDs to the new disk. The process would take some time. Verify by using command `storage > status`. _Demonstration shows the cluster has 16 + 2 (new) osds._ _6 for cc1, 6 for cc2, 6 for cc3_ ```bash cc1> storage status cluster: id: c6e64c49-09cf-463b-9d1c-b6645b4b3b85 health: HEALTH_OK services: mon: 3 daemons, quorum cc1,cc2,cc3 (age 2h) mgr: cc1(active, since 2h), standbys: cc3, cc2 mds: 1/1 daemons up, 1 standby, 1 hot standby osd: 18 osds: 18 up (since 29s), 18 in (since 29s) rgw: 3 daemons active (3 hosts, 1 zones) data: volumes: 1/1 healthy pools: 25 pools, 945 pgs objects: 87.83k objects, 449 GiB usage: 1.3 TiB used, 5.2 TiB / 6.5 TiB avail pgs: 1418/251600 objects degraded (0.564%) 35909/251600 objects misplaced (14.272%) 783 active+clean 104 active+remapped+backfill_wait 52 active+remapped+backfilling 6 active+undersized+degraded+remapped+backfilling io: client: 1.3 MiB/s rd, 494 KiB/s wr, 59 op/s rd, 62 op/s wr recovery: 858 MiB/s, 1 keys/s, 161 objects/s ID HOST USED AVAIL WR OPS WR DATA RD OPS RD DATA STATE 0 cc1 47.3G 324G 7 49.5k 0 0 exists,up 1 cc1 89.2G 282G 3 13.5k 7 193k exists,up 2 cc1 77.1G 295G 10 74.3k 5 164k exists,up 3 cc1 69.2G 302G 1 9216 0 2 exists,up 4 cc1 67.2G 304G 7 31.1k 2 2459 exists,up 5 cc1 67.0G 305G 1 28.7k 1 2547 exists,up 6 cc2 5668M 366G 0 0 0 0 exists,up 7 cc2 5575M 366G 0 0 0 0 exists,up 8 cc2 100G 272G 0 0 1 0 exists,up 9 cc2 112G 259G 7 32.7k 4 120k exists,up 10 cc2 104G 267G 1 15.1k 1 1638 exists,up 11 cc2 88.2G 283G 0 819 2 28.8k exists,up 12 cc3 89.3G 282G 0 0 4 62.4k exists,up 13 cc3 52.0G 320G 4 20.0k 2 71.2k exists,up 14 cc3 61.8G 310G 4 44.0k 26 824k exists,up 15 cc3 53.0G 319G 0 1638 2 0 exists,up 16 cc3 69.4G 302G 0 0 1 0 exists,up 17 cc3 87.9G 284G 4 60.0k 2 37.6k exists,up ``` ### Add a New Disk with Encrypt mode {#add-a-new-disk-with-encrypt-mode} Similar to [Add a New Disk with Raw mode](#add-a-new-disk-with-raw-mode), also use the command `storage > add_disk` to perform. :::info Disks added with `raw mode` would each have `2 OSDs`. On the other hand, disks added with `encrypt mode` would each have only `1 OSD`. ::: ```bash cc2>　storage add_disk index name size -- 1 /dev/sdj 3.7T -- Found 1 available disk Enter the index to add this disk into the pool: 1 Disk protection mode: 1: raw 2: encrypt Enter index: 2 Encrypt disk(s) to protect physical disk loss (beware of performance impacts). Enter 'YES' to confirm: YES Added disk(encrypt) /dev/sdj. ``` ## Add all Available Disks on a Node {#add-all-available-disks-on-a-node} Use command `storage > add_avail` to perform. Two modes of adding disks works same as single disk addition. ```bash cc2> storage add_avail index name size on_hours error serial -- 1 /dev/sdb 745.2G 69618 0 BTWA632602Q3800HGN -- Disk protection mode: 1: raw 2: encrypt Enter index: 1 No disk encryption (default mode). Enter 'YES' to confirm: YES -- Added disk(raw) /dev/sdb. -- Processed 1 disk out of 1. ```