vSphere Storage - ESXi 5.1 - Documentation - VMware

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vSphere Storage For each path you can also display the path's name. The name includes parameters that describe the path: adapter ID, target ID, and device ID. Usually, the path's name has the format similar to the following: fc.adapterID-fc.targetID-naa.deviceID NOTE When you use the host profiles editor to edit paths, you must specify all three parameters that describe a path, adapter ID, target ID, and device ID. View Datastore Paths in the vSphere Client Use the vSphere Client to review the paths that connect to storage devices the datastores are deployed on. Procedure 1 Log in to the vSphere Client and select a host from the inventory panel. 2 Click the Configuration tab and click Storage in the Hardware panel. 3 Click Datastores under View. 4 From the list of configured datastores, select the datastore whose paths you want to view, and click Properties. 5 Under Extents, select the storage device whose paths you want to view and click Manage Paths. 6 In the Paths panel, select the path to view. The panel underneath displays the path's name. The name includes parameters describing the path: adapter ID, target ID, and device ID. 7 (Optional) To extract the path's parameters, right-click the path and select Copy path to clipboard. View Datastore Paths in the vSphere Web Client Review the paths that connect to storage devices backing your datastores. Prerequisites Browse to Datastores in the vSphere Web Client navigator. See “Display Datastore Information in the vSphere Web Client,” on page 23. Procedure 1 Select the datastore. 2 Click the Manage tab, and click Settings. 3 Click Connectivity and Multipathing. 4 If the datastore is shared, select a host to view multipathing details for its devices. 5 Under Multipathing Details, review the multipathing policies and paths for the storage device that backs your datastore. View Storage Device Paths in the vSphere Client Use the vSphere Client to view which SATP and PSP the host uses for a specific storage device and the status of all available paths for this storage device. Procedure 1 Log in to the vSphere Client and select a server from the inventory panel. 2 Click the Configuration tab and click Storage in the Hardware panel. 202 VMware, Inc.
3 Click Devices under View. 4 Select the storage device whose paths you want to view and click Manage Paths. 5 In the Paths panel, select the path to view. The panel underneath displays the path's name. The name includes parameters describing the path: adapter ID, target ID, and device ID. 6 (Optional) To extract the path's parameters, right-click the path and select Copy path to clipboard. View Storage Device Paths in the vSphere Web Client View which multipathing policies the host uses for a specific storage device and the status of all available paths for this storage device. Procedure 1 Browse to the host in the vSphere Web Client navigator. 2 Click the Manage tab, and click Storage. 3 Click Storage Devices. 4 Select the storage device whose paths you want to view. 5 Click the Properties tab and review details under Multipathing Policies. 6 Click the Paths tab to review all paths available for the storage device. Setting a Path Selection Policy For each storage device, the ESXi host sets the path selection policy based on the claim rules. By default, VMware supports the following path selection policies. If you have a third-party PSP installed on your host, its policy also appears on the list. Fixed (VMware) The host uses the designated preferred path, if it has been configured. Otherwise, it selects the first working path discovered at system boot time. If you want the host to use a particular preferred path, specify it manually. Fixed is the default policy for most active-active storage devices. Most Recently Used (VMware) Chapter 20 Understanding Multipathing and Failover NOTE If the host uses a default preferred path and the path's status turns to Dead, a new path is selected as preferred. However, if you explicitly designate the preferred path, it will remain preferred even when it becomes inaccessible. The host selects the path that it used most recently. When the path becomes unavailable, the host selects an alternative path. The host does not revert back to the original path when that path becomes available again. There is no preferred path setting with the MRU policy. MRU is the default policy for most active-passive storage devices. Round Robin (VMware) The host uses an automatic path selection algorithm rotating through all active paths when connecting to active-passive arrays, or through all available paths when connecting to active-active arrays. RR is the default for a number of arrays and can be used with both active-active and active-passive arrays to implement load balancing across paths for different LUNs. VMware, Inc. 203
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vSphere Storage ESXi 5.1 vCenter Se
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Contents About vSphere Storage 9 Up
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Configuring Discovery Addresses for
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22 Storage Thin Provisioning 225 St
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About vSphere Storage vSphere Stora
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Updated Information This vSphere St
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Introduction to Storage 1 This intr
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Networked Storage Networked storage
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Network-attached Storage (NAS) Stor
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Table 1-1. Storage Device Informati
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Table 1-2. Storage Adapter Informat
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Display Datastore Information in th
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Figure 1-6. Virtual machines access
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Overview of Using ESXi with a SAN 2
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ESXi Hosts and Multiple Storage Arr
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Not all applications need to be on
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n Overall impact on SAN environment
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Using ESXi with Fibre Channel SAN 3
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With ESXi hosts, use a single-initi
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Configuring Fibre Channel Storage 4
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2 Check that all SAN components mee
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3 Click VM Options. 4 Click the Fib
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Configuring Fibre Channel over 5 Et
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6 Select the network adapter (vmnic
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6 Click OK. The software FCoE adapt
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Modifying Fibre Channel Storage for
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n To use boot from SAN, make sure t
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3 Execute these commands for SPB to
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Booting ESXi from Fibre Channel SAN
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2 Configure the storage array. a Fr
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g Select 1. WWPN. (Boot this device
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Booting ESXi with Software FCoE 8 E
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Install and Boot ESXi from Software
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Best Practices for Fibre Channel 9
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Storage Array Performance Storage a
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Using ESXi with iSCSI SAN 10 You ca
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The 16-hexadecimal digits are text
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Discovery A discovery session is pa
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Configuring iSCSI Adapters and 11 S
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For active-passive storage arrays n
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Change Name and IP Address for Inde
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n Broadcom iSCSI adapters do not su
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The software iSCSI adapter configur
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Procedure 1 Browse to the host in t
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Figure 11-2. 1:1 adapter mapping on
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You created the virtual VMkernel ad
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5 Click Add and select a VMkernel a
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5 Create iSCSI VMkernel adapters fo
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Managing iSCSI Network Special cons
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Enable Jumbo Frames for Independent
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Procedure 1 Log in to the vSphere C
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Table 11-4. CHAP Security Level (Co
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2 Under Adapter Details, click the
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3 From the list of available target
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Table 11-5. Additional Parameters f
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Procedure u To list iSCSI sessions,
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Modifying iSCSI Storage Systems for
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n Certain EMC CLARiiON CX3 models m
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NetApp Storage Systems For NetApp s
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Booting from iSCSI SAN 13 When you
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4 Select the I/O port to configure.
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2 Change Boot Sequence in BIOS on p
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Isolated iSCSI and Management Netwo
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Best Practices for iSCSI Storage 14
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Because each application has differ
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Generally, applications or systems
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Managing Storage Devices 15 Manage
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Storage Refresh and Rescan Operatio
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Change the Number of Scanned LUNs B
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It is possible for a device to retu
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To avoid these problems, your host
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PDL Conditions and High Availabilit
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Solid State Disks Enablement 16 In
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4 Unclaim the device. u You can unc
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6 Check the device status by runnin
Page 151 and 152: Best Practices for SSD Devices Foll
Page 153 and 154: Working with Datastores 17 Datastor
Page 155 and 156: n Scalability improvements on stora
Page 157 and 158: n Creating a template n Deploying a
Page 159 and 160: In an L3 environment the following
Page 161 and 162: The datastore on the SCSI-based sto
Page 163 and 164: Procedure 1 Log in to the vSphere C
Page 165 and 166: When you perform datastore resignat
Page 167 and 168: 2 Click the Configuration tab and c
Page 169 and 170: Option Description Use free space D
Page 171 and 172: 3 In the Inventory panel, choose Da
Page 173 and 174: Turn off Storage Filters When you p
Page 175 and 176: Set Up Dynamic Disk Mirroring Typic
Page 177 and 178: 4 Click Next. 5 Select the device t
Page 179 and 180: Raw Device Mapping 18 Raw device ma
Page 181 and 182: Snapshots Makes it possible to use
Page 183 and 184: n You cannot convert larger than 2T
Page 185 and 186: 9 In the Ready to Complete New Virt
Page 187 and 188: Manage Paths for a Mapped LUN in th
Page 189 and 190: VMkernel and Storage 19 The VMkerne
Page 191 and 192: Chapter 19 VMkernel and Storage n A
Page 193 and 194: Understanding Multipathing and 20 F
Page 195 and 196: Figure 20-2. Host-Based Path Failov
Page 197 and 198: Figure 20-4. Port Reassignment 10.0
Page 199 and 200: Figure 20-5. Pluggable Storage Arch
Page 201: 6 The SATP interprets the I/O comma
Page 205 and 206: 2 In the Paths panel, right-click t
Page 207 and 208: This example indicates the followin
Page 209 and 210: Procedure 1 To define a new claim r
Page 211 and 212: Mask Paths You can prevent the host
Page 213 and 214: Procedure 1 To add a claim rule for
Page 215 and 216: Storage Hardware Acceleration 21 Th
Page 217 and 218: On your host, the hardware accelera
Page 219 and 220: Procedure u Run the esxcli --server
Page 221 and 222: 3 Load both claim rules by running
Page 223 and 224: Uninstall NAS Plug-Ins To uninstall
Page 225 and 226: Storage Thin Provisioning 22 With E
Page 227 and 228: You can use Storage vMotion or cros
Page 229 and 230: 3 Click the Hardware tab and select
Page 231 and 232: Requirements To use the thin provis
Page 233 and 234: Procedure Chapter 22 Storage Thin P
Page 235 and 236: Using Storage Vendor Providers 23 W
Page 237 and 238: n Alarms indicate a change in stora
Page 239 and 240: 3 In the Storage Providers list, vi
Page 241 and 242: Virtual Machine Storage Profiles 24
Page 243 and 244: View Existing Storage Capabilities
Page 245 and 246: Assign User-Defined Storage Capabil
Page 247 and 248: Remove a Storage Capability in the
Page 249 and 250: Create a Virtual Machine Storage Pr
Page 251 and 252: Procedure 1 Open the Profiles tab o
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Monitor Storage Compliance for Virt
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Using vmkfstools 25 vmkfstools is o
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File System Options File system opt
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When upgrading the datastore, use t
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Renaming a Virtual Disk This option
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Listing Attributes of an RDM This o
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Index Symbols * next to path 201 A
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G GPT 18 H hardware acceleration ab
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limitations 42 requirements 41 O on
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EMC CLARiiON 52, 114 EMC Symmetrix
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vSphere Storage - ESXi 5.1 - Documentation - VMware

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