White Papers
Table Of Contents
- 1 Introduction
- 2 Fibre Channel switch zoning
- 3 Host initiator settings
- 4 Modifying queue depth and timeouts
- 4.1 Host bus adapter queue depth
- 4.2 Storage driver queue depth and timeouts
- 4.3 Adjusting settings for permanent device loss conditions
- 4.4 Modifying the VMFS queue depth for virtual machines (DSNRO)
- 4.5 Adaptive queue depth
- 4.6 Modifying the guest operating system queue depth
- 4.7 Setting operating system disk timeouts
- 5 Guest virtual SCSI adapter selection
- 6 Mapping volumes to an ESXi server
- 6.1 Basic volume mapping concepts
- 6.2 Basic SC Series volume mappings
- 6.3 Multipathed volume concepts
- 6.4 Multipathed SC Series volumes
- 6.5 Configuring the VMware iSCSI software initiator for a single path
- 6.6 Configuring the VMware iSCSI software initiator for multipathing
- 6.7 iSCSI port multi-VLAN configuration recommendations
- 6.8 Configuring the FCoE software initiator for multipathing
- 6.9 VMware multipathing policies
- 6.10 Multipathing using a fixed path selection policy
- 6.11 Multipathing using a round robin path selection policy
- 6.12 Asymmetric logical unit access (ALUA) for front-end SAS
- 6.13 Unmapping volumes from an ESXi host
- 6.14 Mapping volumes from multiple arrays
- 6.15 Multipathing resources
- 7 Boot from SAN
- 8 Volume creation and sizing
- 9 Volume mapping layout
- 10 Raw device mapping (RDM)
- 11 Data Progression and storage profile selection
- 12 Thin provisioning and virtual disks
- 13 Extending VMware volumes
- 14 Snapshots (replays) and virtual machine backups
- 15 Replication and remote recovery
- 16 VMware storage features
- A Determining the appropriate queue depth for an ESXi host
- B Deploying vSphere client plug-ins
- C Configuring Dell Storage Manager VMware integrations
- D Host and cluster settings
- E Additional resources
Mapping volumes to an ESXi server
27 Dell EMC SC Series: Best Practices with VMware vSphere | 2060-M-BP-V
6.7 iSCSI port multi-VLAN configuration recommendations
For SC Series systems with iSCSI capabilities, SCOS 6.5 and later has multiple-VLAN support for diverse
network configurations and multitenant environments. This multi-VLAN support allows iSCSI storage I/O to be
separated between vSwitches for customers using software iSCSI initiators within the guest. It also allows
admins to isolate specific ESXi host-cluster VMkernel ports to their own dedicated iSCSI storage VLAN.
VLANs assigned to vSwitches isolating in-guest iSCSI initiator traffic for customers
Since iSCSI traffic is not encrypted in its plain form, it is a best practice to isolate that traffic for security
purposes. A common misconception is that CHAP encrypts iSCSI traffic, but it only provides authentication for
the connection to prevent unauthorized access.
Note: In older versions of DSM, the configuration of iSCSI VLANs is functionality that can only be configured
through the traditional Dell Storage Manager Client.