NewPush featured in StorageNewsletter.com

StorageNewsletter.com is carrying and article about our new SAN infrastructure choice around IBM N series and Zerowait SimpleStor products. Here is an excerpt:

Zerowait Corporation, provider of independent NetApp support and off- lease systems, announced that NewPush, a global application and data-warehouse hosting company, has selected Zerowait to architect and manage NewPush’s NetApp and IBM N series storage infrastructure.

For the full article, click on NewPush Selects Zerowait


Migrate ProxMox KVM Storage from local to NFS on netapp

Proxmox KVM storage migration from local to NFS

In order to be able to use the live partition migration in Proxmox, the KVM partition needs to be on NFS or iSCSI.

Here is the process for an NFS storage.

- shut down vm
- rsync -av /var/lib/vz/images/<VMID> /mnt/pve/<NFS VOL>/images/
- edit /etc/qemu-server/<VMID>.conf
- change ide0: local:<VMID>/vm-<VMID>-disk-1.raw to ide0: <NFS VOL>:<VMID>/vm-<VMID>-disk-1.raw
- start up vm

Planning for Storage, Server, and Network Infrastructure

Questions to ask when planning storage and server infrastructure

Storage Requirements

  • What our their current storage environment? (What technology do we use? NetApp, EMC, HP, Hitachi, Compellant?)
  • What is our current amount of usable storage?
  • What is our current data in GB / TB? How much of that data is deemed critical as opposed to 2nd tier, or even archivable?
  • What growth increase are we seeing from year to year? (25%? 30%? 40%? More?)
  • Is this our largest variable IT cost within our overall budget?

Server Infrastructure

  • How many servers do we have within our overall Infrastructure environment?
  • What percentage is comprised of Power, Linux or “Wintel”?
  • Do we have a vendor standard? (HP, Dell, IBM?)
  • What is our overall server utilization (7%? 10%? 20%? 50%? More?)
  • Do we utilize virtualization in our server infrastructure environment?
  • If so, what percentage of our environment is virtualized?
  • What version / type of virtualization do we use?
  • Are we looking to do a server consolidation project to help us save on additional software maintenance and energy costs?

Network Infrastructure

  • Do we have (primarily) our own data center or do we store all of our equipment at a co-location / managed services location? (and if so, whom?)
  • What is our current network environment (Cisco? Avaya?)
  • Do we standardize on a vendor?
  • How old / new is their network environment?
  • What kind of connectivity do they have? (T1? T3? DS?)

Security Solutions

  • Do we have a set standard for our security environment?
  • Do we do quarterly security assessments? (PCI and/or FFIEC Assessments?) (Who do we use?)
  • Are there areas we need to improve?

Software Maintenance

Do we have a goto partner we standardize on for software and hardware maintenance contracts?

Projects

  • What are there next three primary projects?
  • What is our IT budget?
  • What is our Calendar year? Jan – Dec? July – June? Etc.

For more information about planning for storage, servers, and network infrastructure, look at our data warehouse pages.


NetApp downgrade firmware

Downgrading firmware on a NetApp SAN

If you have just reclaimed a shelf from a NetApp SAN that you would like to use with an older head, you will notice that the drives are not recognized. This is due the the fact that DataOntap upgrades the drives automatically when you plug them in to an updated shelf, but it won’t downgrade or even recognize correctly drives that come from an higher level revision.

Downgrading drives while keeping the contents is actually impossible.

Actually downgrating the firmware on NetApp SAN drives

Chances are that you don’t really need to downgrade the firmware on the drives, and you can just skip to the next section.

If you are sure you need to downgrade the drives, here are the basic steps:

  • Get a linux box, with a qlogic HBA, and cables that can attach to the shelf that has the drives to downgrade
  • Make sure only the drives that you want to downgrade are in the shelf
  • Make sure the proper disk qualification package is on the filer (if not, download the Disk Qualification Package as a zip file from: http://now.netapp.com/NOW/download/tools/diskqual/ and extract it to the /etc directory of the NetApp)
  • Download all current disk firmware from http://now.netapp.com/NOW/download/tools/diskfw/
  • Get the right firmware for your disk (the new you just downloaded, or an old one, if you need to downgrade) — the old firmware is already on the root volume of the netapp
  • Use the proper firmware upgrade tool from your manufacturer to flash the firmware from the Linux box

Wiping labels on NetApp SAN drives

If you simply can’t get the old filer head to recognize the drives that had new labels, the only viable solution to get the drives to work is to reconnect the shelf to the old filer head that was running a newer firmware.

Erasing labels on NetApp SAN drives

  • Boot into maintenance mode (CTRL+C at boot and then Option 5)
  • list the drives: label summary
  • erase the labels: label wipe 4.23 where 4.23 is the drive number to wipe
  • exit maintenance mode: halt

Chances are that this will still not allow the older filer to see the drives properly. The next step always works: zero the drives.

Zeroing spares on NetApp filer

  • Boot into maintenance mode (CTRL+C at boot and then Option 5)
  • list the drives: label summary
  • force the drives to become spares: label makespare 4.23 where 4.23 is the drive number
  • exit maintenance mode and boot:
    > halt
    ok boot
  • zero the spare drives: drive zero spares
  • remove the shelf or the drives from the new filer, and you can now put them back into the old filer, as they will be recognized just fine.

For more information about our SAN support, look at NetApp SAN.


NetApp route add default gateway

NetApp SAN default gateway setup

DataOntap is a FreeBSD based operating system built by NetApp. However, most of the command line interface commands differ from the usual FreeBSD commands. When a new NetApp installation is performed, or a NetApp migration is needed, typically the IP address needs to be changed, as well as the default gateway. The first step before changing the network configuraiton is to check if the current configuration, and capture it in case you need to back out of the migration. The following paragraphs show how to check existing configuration, and how to set the new gateway. NetApp SAN

Show NetApp SAN network config

To print the current network config, run:
ifconfig -a

To set a new network IP, run:
ifconfig e0 192.168.1.2 netmask 255.255.255.0

Where e0 is your network interface name, and 192.168.1.2 is the new IP of the NetApp.

Show NetApp SAN route config

To print the current routes, run:
route -ns

Setup NetApp SAN default route

Delete NetApp SAN current default route

route delete default

Add NetApp SAN new default route

route add 0.0.0.0 IP_OF_DEFAULT_GW 1
For example, if the fedault gateway is 192.168.1.1:
route add 0.0.0.0 192.168.1.1 1
For more information about our SAN support, look at NetApp SAN.