Ibm V7000 Multipath Drivers For Mac

• Ibm V7000 Unified
• Ibm V7000 Multipath Drivers For Mac Mac

IBM Storwize V7000 Supported Hardware List, Device Driver, Firmware and Recommended Software Levels V6.1 Storwize V7000 Supported Drive Types Please follow this link for details on Supported Drive Types and Firmware Levels for Storwize V7000. References for AIX MPIO and SDDPCM multipath options with DS3000/DS4000/DS5000 While the RDAC driver is being deprecated with AIX, it is still the default driver on.

Ibm V7000 Unified

With so many customers now using Storwize and SVC storage in their Power environment with VIOS, it is important that we get the configuration of the system correct and supported. In the last few months, I have been involved with customers who already have their Power and Storwize systems up and running. Something I’ve found that has been missing on a few occasions is the correct VIOS multipath I/O (MPIO) device driver for the Storwize systems. Mactopos wyoming for mac.

We need an MPIO driver in AIX and VIOS as, normally, we access our SAN-based disks via multiple Fibre Channel ports. The MPIO driver manages the multiple connections to our external disks to provide performance and resiliency. AIX, and therefore VIOS, comes with a built-in MPIO driver which, as far as I can see, was designed for FAStT and DSxxxx storage. If we use Storwize, DS8000 or SVC with our VIOS/AIX LPARs, then we should be replacing the built-in MPIO driver with the SDDPCM MPIO driver provided by IBM. The SDDPCM driver can be downloaded free of charge from IBM and is available for the following operating systems: ● AIX ● Linux ● Windows You’ll notice that IBM i isn’t on that list of operating systems. This is because IBM i already has the necessary MPIO support built in so there is no additional configuration required for IBM i when connecting to Storwize/SVC using NPIV.

When to install SDDPCM If you are connecting to Storwize, SVC or DS8000 directly from any of the above operating systems, you should install SDDPCM. For AIX and Linux client LPARs using NPIV, the SDDPCM driver should be installed in the client LPAR. So, if you have 50 AIX LPARs using NPIV connectivity to Storwize, each AIX LPAR would require SDDPCM installed. The SDDPCM software is not required for AIX or Linux if the storage is provided using native vSCSI or Shared Storage Pools vSCSI.

Ibm V7000 Multipath Drivers For Mac Mac

VIOS will require SDDPCM for one or more of the following configurations: ● The VIOS OS is installed on Storwize provided storage rather than internal disk. ● The VIOS is providing vSCSI mappings to any client LPAR. ● The VIOS is providing vSCSI mappings to any client LPAR via a Shared Storage Pool. Downloading SDDPCM There are two components to download: 1.

SDDPCM driver software. AIX host attachment software. To obtain the SDDPCM driver software, use the following on Fix Central. Note that you will not need to provide any system details or serial numbers to download SDDPCM. The download is small – around 3.25MB – and this provides the devices.sddpcm.61.rte package.

Note that VIOS 2.x versions are equivalent to AIX 6.1. You will also need the devices.fcp.disk.ibm.mpio.rte package which provides Host Attachment capabilities for AIX.

This is not available from Fix Central but a Google search for the following gives me the download page. Google search: aix host attachment devices.fcp.disk.ibm.mpio Again the download is small, less than 100KB. Installing SDDPCM The main consideration when installing SDDPCM is that it will require a reboot of VIOS to activate it. This is why it is best to install SDDPCM when VIOS is initially installed and configured.

If you install VIOS without SDDPCM and use the built-in MPIO driver, then you need to amend the reservepolicy attribute on the hdisks to “no”. When SDDPCM is installed, all the hdisks from the Storwize mapped to VIOS will have the reservepolicy set to “no” automatically. On each VIOS you wish to install SDDPCM create a new directory called sddpcm: mkdir sddpcm This folder will be located under /home/padmin 2. Expresscard/34 w firewire 400 for mac. FTP or scp the devices. files you downloaded from IBM to your VIOS and put these into the /home/padmin/sddpcm folder. Ensure that you specify binary for the transfer type if using FTP. On the VIOS, change from the padmin environment to the AIX environment using: oemsetupenv OR aix (only available if you have this set up as an alias) 4.

Change to the /home/padmin/sddpcm directory: cd /home/padmin/sddpcm 5. Create a.toc file for the files in the directory: inutoc.

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(ensure you put a space and full stop after the inutoc command). Use smitty to install the sddpcm and host attachment software: smitty installp Take the “Install Software” option. For “INPUT device / directory for software.” just use a full stop to represent the current directory. At the Install Software panel, change ACCEPT new license agreements to “yes”. Press Enter and then again to confirm.

The installation normally takes between one and three minutes and does not impact the running VIOS or the client LPARs associated with the VIOS. The SDDPCM driver will not be activated until you reboot the VIOS. Note that the IBM documentation discusses removing any existing device driver software prior to installing SDDPCM. I have never had to remove any drivers from VIOS prior to installing SDDPCM to date. This may not be the case for your environment.

The IBM documentation also discusses installing the AIX host attachment software prior to the SDDPCM driver. I have always found that using the procedure above does not require this as installp detects the prerequisite and handles this automatically.