topic Re: Number of disks reserved for OS in Netapp filer for ONTAP in ONTAP Discussions https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63868#M15085 <HTML><HEAD></HEAD><BODY><P>There are no Disks reserved for Data Ontap. Usually&nbsp; OS resides on Vol0(root volume) which resides on aggr0(root aggregate).</P><P></P><P>Mailbox is of two disks <SPAN style="color: #454545; font-family: Arial, Helvetica, Verdana, sans-serif; background-color: #ffffff;">resides at first aggregate which is an alternate heartbeat path for the cluster software.</SPAN></P><P></P><P>root volume/aggregate can be renamed.</P></BODY></HTML> Mon, 20 Jan 2014 12:10:32 GMT RAMACHANDRA_CBRANDS 2014-01-20T12:10:32Z Number of disks reserved for OS in Netapp filer for ONTAP https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63863#M15083 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>What is the number of disks reserved for Data ONTAP OS on the NetApp filers?.</P><P></P><P>Thanks,</P><P>Mohan</P></BODY></HTML> Thu, 05 Jun 2025 05:45:08 GMT https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63863#M15083 MOHAN1985 2025-06-05T05:45:08Z Re: Number of disks reserved for OS in Netapp filer for ONTAP https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63868#M15085 <HTML><HEAD></HEAD><BODY><P>There are no Disks reserved for Data Ontap. Usually&nbsp; OS resides on Vol0(root volume) which resides on aggr0(root aggregate).</P><P></P><P>Mailbox is of two disks <SPAN style="color: #454545; font-family: Arial, Helvetica, Verdana, sans-serif; background-color: #ffffff;">resides at first aggregate which is an alternate heartbeat path for the cluster software.</SPAN></P><P></P><P>root volume/aggregate can be renamed.</P></BODY></HTML> Mon, 20 Jan 2014 12:10:32 GMT https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63868#M15085 RAMACHANDRA_CBRANDS 2014-01-20T12:10:32Z Re: Number of disks reserved for OS in Netapp filer for ONTAP https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63874#M15087 <HTML><HEAD></HEAD><BODY><P>OS itself is located on internal boot device (USB flash in current models). Settings are in vol0, which can be in any aggregate (minimal size is model dependent)</P></BODY></HTML> Mon, 20 Jan 2014 13:13:45 GMT https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63874#M15087 aborzenkov 2014-01-20T13:13:45Z Re: Number of disks reserved for OS in Netapp filer for ONTAP https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63878#M15089 <HTML><HEAD></HEAD><BODY><P>If Clustered Data ONTAP (cDOT) there are 3 disks reserved for mroot as the factory default.&nbsp; Root (mroot) has to be on a dedicated aggregate with cDOT, however for 7-Mode it is optional to put vol0 on a shared or dedicated aggregate.</P></BODY></HTML> Tue, 21 Jan 2014 00:15:58 GMT https://community.netapp.com/t5/ONTAP-Discussions/Number-of-disks-reserved-for-OS-in-Netapp-filer-for-ONTAP/m-p/63878#M15089 scottgelb 2014-01-21T00:15:58Z