Installation manual

Policy for Balancing Capacity
Adding a Share Farm
12-16 CLI Storage-Management Guide
bstnA6k(gbl)# namespace wwmed
bstnA6k(gbl-ns[wwmed])# volume /acct
bstnA6k(gbl-ns-vol[wwmed~/acct])# share-farm fm1
bstnA6k(gbl-ns-vol-sfarm[wwmed~/acct~fm1])# ...
Adding a Share to the Farm
The next step in creating a share farm is to add a share to the farm. The share farm can
hold multiple shares. Use the
share command to add one:
share name
where name (1-64 characters) identifies the share.
For example, the following command sequence adds two shares, “budget” and “bills,”
to the share farm named “fm1:”
bstnA6k(gbl)# namespace wwmed
bstnA6k(gbl-ns[wwmed])# volume /acct
bstnA6k(gbl-ns-vol[wwmed~/acct])# share-farm fm1
bstnA6k(gbl-ns-vol-sfarm[wwmed~/acct~fm1])# share bills
bstnA6k(gbl-ns-vol-sfarm[wwmed~/acct~fm1])# share budget
bstnA6k(gbl-ns-vol-sfarm[wwmed~/acct~fm1])# ...
Setting a Placement Weight for a Share
Share-farm balancing policies can use different “weights” for each share. A share’s
weight determines how many newly-created files it can handle. If you configure
round-robin balancing in a share farm (described below), the ARX uses the weights to
determine the proportional number of files to assign to each share.
A share weight can be any number between 0 and 100. The weight of each share is
compared to the weights of the other shares to determine the number of new files that
each should get. If one share has a weight of 50 and two others have weights of 25
each, the first share is tasked with twice as many new files as the other two.