topic Re: NetApp mailbox disk in ONTAP Hardware https://community.netapp.com/t5/ONTAP-Hardware/NetApp-mailbox-disk/m-p/32659#M2238 <HTML><HEAD></HEAD><BODY><P>So called "mailbox disk" it's a old (now using as a spare) method for clustering interconnection and communication between two cluster "heads".</P><P>"Mailbox disk" it's a special area at a two of disk (by default one data and one parity, or one parity and one dparity disks), and usually resides at a first aggregate.</P><P>It's consume a very small amount of space (around KB or two)</P><P>Actuallly, it's just a flag area, one "head" can raise the flag - "I'm alive! Everything is OK!" for another one, partner "head", and vice-versa. It looks like e-mailing between heads, it's a reason why they calling it "mailbox".</P></BODY></HTML> Sat, 14 Dec 2013 15:26:02 GMT ABOUTNETAPP_RU 2013-12-14T15:26:02Z NetApp mailbox disk https://community.netapp.com/t5/ONTAP-Hardware/NetApp-mailbox-disk/m-p/32653#M2237 <HTML><HEAD></HEAD><BODY><P>Hi All,</P><P></P><P>What is mail-box disk in netapp? what is the use of it? where it resides? Is this available in single node FAS system? how much space used for mail-box?</P></BODY></HTML> Thu, 05 Jun 2025 05:47:19 GMT https://community.netapp.com/t5/ONTAP-Hardware/NetApp-mailbox-disk/m-p/32653#M2237 DHAKSHINAMOORTHY_B 2025-06-05T05:47:19Z Re: NetApp mailbox disk https://community.netapp.com/t5/ONTAP-Hardware/NetApp-mailbox-disk/m-p/32659#M2238 <HTML><HEAD></HEAD><BODY><P>So called "mailbox disk" it's a old (now using as a spare) method for clustering interconnection and communication between two cluster "heads".</P><P>"Mailbox disk" it's a special area at a two of disk (by default one data and one parity, or one parity and one dparity disks), and usually resides at a first aggregate.</P><P>It's consume a very small amount of space (around KB or two)</P><P>Actuallly, it's just a flag area, one "head" can raise the flag - "I'm alive! Everything is OK!" for another one, partner "head", and vice-versa. It looks like e-mailing between heads, it's a reason why they calling it "mailbox".</P></BODY></HTML> Sat, 14 Dec 2013 15:26:02 GMT https://community.netapp.com/t5/ONTAP-Hardware/NetApp-mailbox-disk/m-p/32659#M2238 ABOUTNETAPP_RU 2013-12-14T15:26:02Z