For multiple nodes on search services, can solr.backup.dir value be same ?

VS

Using ACS 7.1.x with SS 2.x enterprise edition. 

When setting solr.backup.dir location in solrcore properties, does the location change for different instances (hosts) or it remains the same? So for each core if I have following defined and if i trigger the search.alfrescoCoreBackupJobDetail and search.archiveCoreBackupJobDetail jobs, Will all backup starts at once at same location on all instances?

solr.backup.dir=/BackupPath/alfresco

solr.backup.dir=/BackupPath/archive

VS

I have different backup location set on each node. So when i trigger search.alfrescoCoreBackupJobDetail and search.archiveCoreBackupJobDetail jobs, its randomly picking any one of the solr nodes and taking the snapshots for that node. Other node is unaffected for that run.