Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Mute
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
we need to migrate very old FAS with 7-mode through a tool like robocopy because 7MTT is not supported.
We received from customer an autosupport.
My concern is about what to consider as space to migrate.
If I look in DF-A section I have bigger space Vs DF without any parameters.
What is the right space to consider ?
Many Thanks Luca
Solved! See The Solution
1 ACCEPTED SOLUTION
Drew_C has accepted the solution
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi, probably I found the solution reading this KB:
All volumes of customer are space guarantee so DF total TB are equal to DF-A.
I might say that for migration purposes the DF-S is the right choice.
Many thanks Luca
8 REPLIES 8
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
df -A = aggregate
df is just regular volume space.
ONTAP has two WAFL file systems at the aggregate and volume level (volumes within the aggregate).
So...both? Probably the total size of all volumes, but the aggregate can give you an idea too.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
the issue is that if I sum all the autosupport received from customer with:
DF-A total is 186TB
DF-S total is 106TB (used + deduplication)
There is a huge difference, I guess there's something hidden I don't know at aggregate level.
Many thanks Luca
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
df -s = df + sis (dedupe) space savings
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Yes, my idea is to use DF-S instead of DF-A but I don't understand why there's such a difference.
Many thanks Luca
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Do you have the AutoSupport ID by chance or serial number (if the system is sending AutoSupports)? It might just be easier to take a look.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
I noticed that all volumes have "fractional_reserve" set to 100%, is this the reason why I see such difference at aggregate level ?
Thanks Luca
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
That might be. That should thin provision the volumes if I remember correctly. Good find.
Drew_C has accepted the solution
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi, probably I found the solution reading this KB:
All volumes of customer are space guarantee so DF total TB are equal to DF-A.
I might say that for migration purposes the DF-S is the right choice.
Many thanks Luca
