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Supported limits


HCP supports the maximum values listed in the table below.

Item Limit

Hardware

Maximum number of general access, G Series Nodes 80
Maximum number of HCP S Series Nodes 80

Logical storage volumes

SAIN systems

Maximum number of data and shared volumes per storage node (SAIN) 63
Maximum logical volume size (SAIN) 15.999 TB
Maximum number of index volumes per node (SAIN) 27
Maximum number of spindown volumes per node (SAIN) 31
Maximum number of NFS volumes per node (SAIN) 31

RAIN systems

Maximum number of data and shared volumes per storage node (RAIN) 4
Maximum logical volume size (RAIN) Depends on HDD capacity
Maximum number of NFS volumes per node (RAIN) 31

HCP-VM systems

Maximum number of HCP-VM/KVM nodes, with 32 GB DRAM 40
Maximum number of HCP-VM/KVM nodes, with 16 GB DRAM 16
Maximum number of logical volumes per storage node (VM) 59 data LUNs
Maximum logical volume size VM for ESXi 5.5 or later 16 TB minus 1 GB

Data storage

Maximum number of objects per storage node

Standard non-SSD disks for indexes: 800,000,000

SSD for indexes: 1,250,000,000

Maximum number of objects per HCP system

64,000,000,000
(80 nodes times 800,000,000 objects per node)

If using 1.9 TB SSD drives: 100,000,000,000
(80 nodes times 1,250,000,000 objects per node)

Maximum number of directories per node if one or more namespaces are not optimized for cloud 1,500,000
Maximum number of directories per node if all namespaces are optimized for cloud 15,000,000
Maximum number of objects per directory 30,000,000
Maximum object size

By protocol:

HTTP: About 2 TB (2,194,719,883,008 bytes)

Hitachi API for Amazon S3:

oWithout multipart upload: About 2 TB (2,194,719,883,008 bytes)

oWith multipart upload: 5 TB

HSwift: About 2 TB (2,194,719,883,008 bytes)

WebDAV: About 2 TB (2,194,719,883,008 bytes)

CIFS: 100 GB

NFS: 100 GB

Hitachi API for Amazon S3: Minimum size for parts in a complete multipart upload request (except the last part) 1 MB
Hitachi API for Amazon S3: Maximum part size for multipart upload 5 GB
Hitachi API for Amazon S3: Maximum number of parts per multipart upload 10,000
Maximum number of tenants 1,000
Maximum number of namespaces 10,000
Maximum number of namespaces with the CIFS or NFS protocol enabled 50
Maximum number of attachments per email for SMTP 50
Maximum aggregate email attachment size for SMTP 500 MB
Maximum number of SMTP connections per node 100

User/group accounts

Maximum number of system-level user accounts per HCP system 10,000
Maximum number of system-level group accounts per HCP system 100
Maximum number of tenant-level user accounts per tenant 10,000
Maximum number of tenant-level group accounts per tenant 100
Maximum number of users in a username mapping file (default tenants only) 1,000

Custom metadata

Maximum number of annotations per individual object 10
Maximum non-default annotation size with XML checking enabled 1 MB
Maximum default annotation size with XML checking enabled 1 GB
Maximum annotation size (both default and non-default) with XML checking disabled 1 GB
Maximum number of XML elements per annotation 10,000
Maximum level of nested XML elements in an annotation 100
Maximum number of characters in the name of custom metadata annotation 32

Access control lists

Maximum size of access control entries per ACL 1,000 MB

Metadata query engine

Maximum number of content classes per tenant 25
Maximum number of content properties per content class 100
Maximum number of concurrent metadata query API queries per node 5

Network

Maximum number of user-defined networks (virtual networks) per HCP system 200
Maximum downstream DNS servers 32
Maximum certificates and CSR per domain 10

Storage tiering

Maximum number of storage components 100
Maximum number of storage pools 100
Maximum number of tiers in a service plan 5

Miscellaneous

Maximum number of HTTP connections per node 255

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