You can restore the database from backup, and restore the log to the good drive, until a new drive comes along, or the old one gets fixed.
If you have no backups you should make a copy of the .MDF file immediately. Anything else I suggest will make changes to this file. Once you have a copy of the .MDF file, you can try to attach it to the SQL Server instance, so long as there were no transactions "in flight" while the disk went bad.
sp_attach_single_file_db testdb, 'full path to your copy of the .MDF file'
File activation failure. The physical file name "D:\db\lin2world_log.ldf" may be incorrect.
The log cannot be rebuilt because the database was not cleanly shut down.
Msg 1813, Level 16, State 2, Line 1
Could not open new database 'testdb'. CREATE DATABASE is aborted.