PowerFlex 5.X: Product Min and Max Limits

Summary: PowerFlex product limits specify the minimum and maximum supported configurations in this release. The maximum and minimum values for key system parameters are dictated by the product limits. ...

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Product limits

The following table summarizes the supported capabilities and system limits for PowerFlex 5.0.

NOTE:The supported limits described in the following table might differ from the enforced system limits listed in the output for the scli --query_system_limits command.
Table 1. Supported capabilities and system limits
PowerFlex capability Limits
PowerFlex software PowerFlex appliance PowerFlex rack
Maximum system raw capacity 8+2: 16 PB

2+2: 4 PB

 8+2: 16 PB

2+2: 4 PB
Device size Minimum: 480 GB

Maximum: 16 TB

 Minimum: 1.92 TB

Maximum: 16 TB
Minimum number of storage nodes in a protection domain 8+2: 11 storage nodes

2+2: 5 storage

 8+2: 11 storage nodes

2+2: 5 storage
Minimum storage pool/device group size 1.6 TB x number of storage nodes in the protection domain 1.6 TB x number of storage nodes in the protection domain
Minimum devices per node 1 1
Minimum capacity per node 1.6 TB 1.6 TB
Volume size Minimum 1 GB

Maximum 1 PB

 Minimum 1 GB

Maximum 1 PB
Maximum total number of volumes and snapshots in the system. (Can be a single protection domain or storage pool) 128,000 128,000
Maximum number of snapshots in a single volume family 1022 1022
Maximum capacity per protection domain 16 PB 16 PB
Maximum capacity per storage node 192 TB 192 TB
Maximum hosts (SDC or NVMe) per system SDC: 2,000

NVMe: 1,000 + 1,000 SDCs

 Managed hosts: 400 (SDC or NVMe or both, on either storage nodes or compute-only nodes)

Unmanaged hosts: 2,000
Maximum storage nodes per system 128 128
Maximum storage devices (drives) per storage node 32 24
Maximum persistent memory (PMEM) devices per storage node NVDIMM: 8

SDPM: 2

 NVDIMM: 8

SDPM: 2
Maximum devices per protection domain 4096 768
Total size of all volumes per storage pool 4 EB 4 EB
Maximum logical capacity per system 4 EB 4 EB
Maximum volumes that can be mapped to a single SDC 1024 1024
Over provisioning factor 100 x size of the storage pool 100 x size of the storage pool
Maximum protection domains per system 8 8
Maximum device groups per protection domain 1 storage device group + 1 PMEM device group 1 storage device group + 1 PMEM device group
Number of storage pools per protection domain 1 1
Maximum number of snapshots per snapshot policy 60 60
Maximum snapshot policies per system 1000 1000
Maximum user accounts 256 256
Maximum number of concurrent logged-in management clients (PowerFlex Manager, REST API, and SCLI) 128 128
Maximum volumes that can be mapped concurrently using the REST API (PowerFlex Manager, REST API, and SCLI) 1024 1024
Maximum number of configured syslog servers 16 16
Maximum number of volumes-to-SDC or NVMe host mappings per system SDC: 262,143

NVMe: 32,000

 SDC: 262,143

NVMe: 32,000
SCSI-3 reservation type Write exclusive registrants only Write exclusive registrants only
Maximum managed PowerFlex nodes per system N/A 400
Maximum PowerFlex nodes per resource group N/A 32
Table 2. NVMe over TCP limits
PowerFlex item Limit
Maximum SDTs per system 128
Maximum SDTs per protection domain 128
Minimum SDTs per protection domain 2
NOTE:Using the minimum number of SDTs may block the ability of PowerFlex to reach the maximum NVMe hosts.
Maximum number of NVMe hosts created in PowerFlex 1024
Maximum NVMe host connections (I/O controllers) per SDT 512
Maximum NVMe host connections (I/O controllers) per system 65,519
Maximum I/O controller queue depth 128
Maximum I/O controller queues 32
NOTE:Number of queues + queue depth is automatically negotiated upon connection.
Number of volumes mapped to a single NVMe host 1024
Maximum number of paths per volume 8
Maximum number of connections per NVMe host per protection domain 16
Table 3. PowerFlex management platform limits
Capability Limit
Maximum number of configured users 20
Maximum number of LDAP users 20
Maximum number of LDAP servers 1
Maximum number of DNS servers 1
Maximum number of time sources 1
Maximum number of SMTP servers 1
Maximum number of vCenters 1

 

Additional Information

Dell PowerFlex 5.0.x and PowerFlex Manager 5.0.x Technical Overview

Article Properties
Article Number: 000379528
Article Type: How To
Last Modified: 18 Dec 2025
Version:  2
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