Hardware Sizing Guidelines for Distributed Storage
Three storage servers configured similarly form the base cluster. Configuration is based on raw capacity of servers (HDDs). The current recommended data resilience method is erasure-coding (4+2) for backup workloads and RF3 for copy data management workloads. Here are the supported configurations when Commvault software is used for data-protection:
Description | Small | Medium | Large | Jumbo |
|---|---|---|---|---|
Raw capacity per node | 144 TiB | 288TiB | 336TiB | 384TiB |
Dual Boot Disk | 2 x 480 GB SATA RI SSD or M.2 | 2 x 480 GB SATA RI SSD or M.2 | 2 x 480 GB SATA RI SSD or M.2 | 2 x 480 GB SATA RI SSD or M.2 |
RAM | 512 GB | 512 GB | 512 GB | 768 GB |
CPU | 2 x Intel Silver 4214R - 12 core | 2 x Intel Silver 4214R - 12 core | 2 x Intel Silver 4214R - 12 core | 2 x Intel Silver 4214R - 12 core |
Data Storage (HDD/Flash) | 12 x 12 TiB SAS HDD | 24 x 12 TiB SAS HDD | 24 x 14 TiB SAS HDD | 24 x 16 TiB SAS HDD |
Power Supply | Dual | Dual | Dual | Dual |
NIC | Dual Port - 10 GB/25 GB | Dual Port - 10 GB/25 GB | Dual Port - 10 GB/25 GB | Dual Port - 10 GB/25 GB |
NVMe (Metadata) | 1 x 6.4 TiB *Metadata is stored on dedicated flash storage that can consist of Mixed Use (MU) SAS, SSD, and NVMe types. | 2 x 6.4 TiB *Metadata is stored on dedicated flash storage that can consist of Mixed Use (MU) SAS, SSD, and NVMe types. | 2 x 6.4 TiB *Metadata is stored on dedicated flash storage that can consist of Mixed Use (MU) SAS, SSD, and NVMe types. | 2 x 6.4 TiB *Metadata is stored on dedicated flash storage that can consist of Mixed Use (MU) SAS, SSD, and NVMe types. |
Hardware RAID Controllers | OS Mirroring | OS Mirroring | OS Mirroring | OS Mirroring |
Note: Commvaultperforms deduplication for backup workloads, and Distributed Storage performs deduplication for copy data management workloads.
Related References
Port Requirements for Distributed Storage
Storage Nodes
The following ports must be opened on the storage nodes in bond1 or the private storage network:
Protocol | Port | Description |
|---|---|---|
TCP | 22 | SSH |
TCP | 80 | UI |
TCP | 443 | https |
TCP | 2181 | Zookeeper client |
TCP | 7000 - 7010, 7100, 7500, 8000 - 8100, 11001, 11002, 15000 | gossip, thrift |
UDP | 1024 - 65535 | UDP high ports |
ICMP | N/A | icmp |
Storage Proxies
The following ports must be opened on the proxies in bond1 or the private storage network:
Protocol | Port | Description |
|---|---|---|
TCP | 22 | SSH |
TCP | 111 | rpcbind |
TCP | 875 | rquotad |
TCP | 2049 | NFS |
TCP | 2224 | pcsd |
TCP | 3121 | pacemaker |
TCP | 3260 | iSCSI |
TCP | 21064 | dlm |
TCP | 33333 | mountd |
TCP | 50000 - 50008, 50022 | cvm thrift |
UDP | 111 | rpcbind UDP |
ICMP | N/A | icmp |
The following ports are required by Commvault software when firewalls or port restrictions are in place in bond0 or the data protection network:
From | To | Protocol | Port | Description |
|---|---|---|---|---|
All Clients | Network gateway | TCP | 8403 | Network gateway tunnel port |
MediaAgents | Network gateway | TCP | 8403 | Network gateway tunnel port |
CommServe | Network gateway | TCP | 8403 | Network gateway tunnel port |
All Clients | MediaAgent | TCP | 8400 | CVD (Commvault Communications Service) |
All Clients | MediaAgent | TCP |
For comprehensive information on port requirements for Commvault software, see Network TCP Port Requirements.